水(shui)(shui)電(dian)站多采(cai)用(yong)浮子式液位(wei)(wei)計(ji)(ji)(ji)或投入(ru)式液位(wei)(wei)計(ji)(ji)(ji)來進(jin)(jin)行(xing)(xing)水(shui)(shui)位(wei)(wei)測量(liang)(liang)。其缺點(dian)為：測量(liang)(liang)精度低(di)，不可靠，經(jing)常出(chu)現浮子卡死(si)不動和(he)(he)傳感(gan)器堵塞導致測不準(zhun)；維護工作量(liang)(liang)大(da)，安(an)(an)裝、調試不便，采(cai)集(ji)到(dao)(dao)的只是(shi)模擬告警信(xin)號，不能直接(jie)進(jin)(jin)入(ru)電(dian)廠計(ji)(ji)(ji)算(suan)機(ji)(ji)監(jian)(jian)控(kong)系統(tong)。對(dui)無人值班電(dian)廠不實(shi)用(yong)。通過對(dui)攔污柵(zha)水(shui)(shui)位(wei)(wei)測量(liang)(liang)系統(tong)進(jin)(jin)行(xing)(xing)了反復對(dui)比，優(you)化得出(chu)之后(hou)的方案設計(ji)(ji)(ji)，采(cai)用(yong)超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)液位(wei)(wei)計(ji)(ji)(ji)對(dui)柵(zha)前、柵(zha)后(hou)水(shui)(shui)位(wei)(wei)進(jin)(jin)行(xing)(xing)實(shi)時(shi)(shi)準(zhun)確監(jian)(jian)測，超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)液位(wei)(wei)計(ji)(ji)(ji)用(yong)PLC對(dui)采(cai)集(ji)量(liang)(liang)進(jin)(jin)行(xing)(xing)處(chu)理(li)。并且(qie)把(ba)實(shi)時(shi)(shi)水(shui)(shui)位(wei)(wei)和(he)(he)壓差數據送(song)到(dao)(dao)中(zhong)控(kong)室，超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)液位(wei)(wei)計(ji)(ji)(ji)顯(xian)示和(he)(he)越限報警。超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)液位(wei)(wei)計(ji)(ji)(ji)同時(shi)(shi)采(cai)用(yong)RS422/RS232接(jie)口，又把(ba)實(shi)時(shi)(shi)數據送(song)到(dao)(dao)大(da)壩集(ji)中(zhong)控(kong)制室工控(kong)機(ji)(ji)，處(chu)理(li)成計(ji)(ji)(ji)算(suan)機(ji)(ji)通信(xin)報文，之后(hou)將(jiang)采(cai)集(ji)量(liang)(liang)送(song)到(dao)(dao)電(dian)廠計(ji)(ji)(ji)算(suan)機(ji)(ji)監(jian)(jian)控(kong)系統(tong)上位(wei)(wei)機(ji)(ji)。超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)流量(liang)(liang)計(ji)(ji)(ji)安(an)(an)裝位(wei)(wei)置(zhi)選擇(ze)安(an)(an)裝管段對(dui)測試精度影(ying)響很大(da)。山東(dong)分體式超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)流量(liang)(liang)計(ji)(ji)(ji)哪家(jia)好

便(bian)攜式(shi)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計由超(chao)(chao)(chao)音(yin)波(bo)(bo)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)及總流(liu)(liu)量(liang)(liang)(liang)(liang)顯示信(xin)(xin)息(xi)和積(ji)累系統軟件(jian)三一(yi)部分構成。超(chao)(chao)(chao)音(yin)波(bo)(bo)發送(song)(song)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)將電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)能(neng)(neng)(neng)(neng)變(bian)換(huan)(huan)(huan)為(wei)超(chao)(chao)(chao)音(yin)波(bo)(bo)動能(neng)(neng)(neng)(neng)，并將其發送(song)(song)到被測流(liu)(liu)體力(li)學中(zhong)，信(xin)(xin)號接(jie)收器(qi)接(jie)受(shou)到的(de)超(chao)(chao)(chao)音(yin)波(bo)(bo)數據信(xin)(xin)號，經電(dian)(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)變(bian)大并變(bian)換(huan)(huan)(huan)為(wei)意(yi)味著總流(liu)(liu)量(liang)(liang)(liang)(liang)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)子信(xin)(xin)號提供顯示信(xin)(xin)息(xi)和積(ji)算儀表盤開展顯示信(xin)(xin)息(xi)和積(ji)算。那樣就完成了(le)總流(liu)(liu)量(liang)(liang)(liang)(liang)的(de)檢驗和顯示信(xin)(xin)息(xi)。便(bian)攜式(shi)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計常見壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)式(shi)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)。它(ta)運(yun)(yun)用壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)材(cai)料的(de)壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)效應(ying)(ying)，選用適出的(de)發送(song)(song)電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)把電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)能(neng)(neng)(neng)(neng)加到發送(song)(song)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)的(de)壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)式(shi)元(yuan)器(qi)件(jian)上(shang)，使其造成超(chao)(chao)(chao)音(yin)波(bo)(bo)振勸。超(chao)(chao)(chao)音(yin)波(bo)(bo)以某一(yi)視角射進流(liu)(liu)體力(li)學中(zhong)散播，隨后(hou)由接(jie)受(shou)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)接(jie)受(shou)，并經壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)式(shi)元(yuan)器(qi)件(jian)變(bian)成電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)能(neng)(neng)(neng)(neng)，便(bian)于(yu)檢驗。發送(song)(song)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)運(yun)(yun)用壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)式(shi)元(yuan)器(qi)件(jian)的(de)逆壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)效應(ying)(ying)，而接(jie)受(shou)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換(huan)(huan)(huan)能(neng)(neng)(neng)(neng)器(qi)則是(shi)運(yun)(yun)用壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)效應(ying)(ying)。山東(dong)分體式(shi)超(chao)(chao)(chao)聲(sheng)(sheng)波(bo)(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計哪家好(hao)很多用戶的(de)印象可能(neng)(neng)(neng)(neng)是(shi)先進的(de)流(liu)(liu)量(liang)(liang)(liang)(liang)計總是(shi)價(jia)格高(gao)。

超聲(sheng)波流量(liang)(liang)計是近十幾年來(lai)跟著集成電(dian)路技(ji)能迅速發(fa)展才開始運用的(de)(de)(de)外表(biao)(biao)，技(ji)能老到搶(qiang)先、性(xing)價(jia)比(bi)高。特別是管(guan)(guan)道式一體(ti)型超聲(sheng)波流量(liang)(liang)計，運用規劃(hua)普(pu)遍，丈量(liang)(liang)聲(sheng)道可達(da)(da)3個(ge)，穩定性(xing)和(he)可靠(kao)性(xing)高，可在線(xian)檢定，操作和(he)保(bao)護本錢非常低，性(xing)價(jia)比(bi)高，精(jing)度可達(da)(da)±0.3%。它選用搶(qiang)先“時(shi)(shi)(shi)差(cha)法”丈量(liang)(liang)原理，運用超聲(sheng)波脈沖在通過液(ye)(ye)體(ti)順逆兩方向上(shang)(shang)傳達(da)(da)速度之差(cha)來(lai)求圓管(guan)(guan)內(nei)液(ye)(ye)體(ti)的(de)(de)(de)流量(liang)(liang)，簡(jian)直不受(shou)被測流體(ti)溫度、壓力、粘度、密度等參(can)數(shu)的(de)(de)(de)影響。當超聲(sheng)波束(shu)(shu)在液(ye)(ye)體(ti)中(zhong)傳達(da)(da)時(shi)(shi)(shi)，液(ye)(ye)體(ti)的(de)(de)(de)活(huo)動將使傳達(da)(da)時(shi)(shi)(shi)刻(ke)發(fa)作細微(wei)改動，而且(qie)其(qi)傳達(da)(da)時(shi)(shi)(shi)刻(ke)的(de)(de)(de)改動正(zheng)比(bi)于液(ye)(ye)體(ti)的(de)(de)(de)流速，其(qi)聯絡契合(he)下列表(biao)(biao)達(da)(da)式：其(qi)間，θ為(wei)(wei)聲(sheng)束(shu)(shu)與液(ye)(ye)體(ti)活(huo)動方向的(de)(de)(de)夾(jia)角，M為(wei)(wei)聲(sheng)束(shu)(shu)在液(ye)(ye)體(ti)的(de)(de)(de)直線(xian)傳達(da)(da)次數(shu)；D為(wei)(wei)管(guan)(guan)道直徑，Tup為(wei)(wei)聲(sheng)束(shu)(shu)在正(zheng)方向上(shang)(shang)的(de)(de)(de)傳達(da)(da)時(shi)(shi)(shi)刻(ke)，Tdown為(wei)(wei)聲(sheng)束(shu)(shu)在逆方向上(shang)(shang)的(de)(de)(de)傳達(da)(da)時(shi)(shi)(shi)刻(ke)，ΔT=Tup-Tdown。

超聲(sheng)波(bo)流量計往常(chang)不需保(bao)(bao)護，每半年(nian)應(ying)查看(kan)其信號強度(du)(du)(du)，如(ru)發(fa)現信號強度(du)(du)(du)低于(yu)65，應(ying)將傳(chuan)感器(qi)取下，將焊接在管(guan)(guan)段上的(de)導波(bo)管(guan)(guan)內螺紋孔(kong)拾(shi)掇(duo)(duo)潔(jie)(jie)凈，確(que)保(bao)(bao)沒(mei)有(you)水分，然后將傳(chuan)感器(qi)拾(shi)掇(duo)(duo)潔(jie)(jie)凈，外表從頭涂上耦合(he)劑(ji)，用手留神(shen)旋入導波(bo)管(guan)(guan)內。留神(shen)：用手擰(ning)緊即可，切(qie)勿運(yun)用扳手加力(li)(li)！超聲(sheng)波(bo)流量計是近十(shi)幾(ji)年(nian)來跟著集成電路技(ji)能迅速(su)發(fa)展(zhan)才(cai)開始運(yun)用的(de)外表，技(ji)能老到搶先、性價(jia)比高。特(te)別是管(guan)(guan)道(dao)式一體型超聲(sheng)波(bo)流量計，運(yun)用規劃普遍，丈量聲(sheng)道(dao)可達(da)3個(ge)，穩定(ding)性和(he)可靠性高，可在線檢定(ding)，操作(zuo)和(he)保(bao)(bao)護本錢非常(chang)低，性價(jia)比高，精度(du)(du)(du)可達(da)±0.3%。它(ta)選用搶先“時差法”丈量原理，運(yun)用超聲(sheng)波(bo)脈沖在通(tong)過液體順逆兩方向(xiang)上傳(chuan)達(da)速(su)度(du)(du)(du)之差來求圓管(guan)(guan)內液體的(de)流量，簡直不受(shou)被測流體溫度(du)(du)(du)、壓力(li)(li)、粘度(du)(du)(du)、密度(du)(du)(du)等參數的(de)影響。超聲(sheng)波(bo)流量計沒(mei)有(you)運(yun)動部件，不需要接觸流體，因此(ci)沒(mei)有(you)壓力(li)(li)損失。

相差(cha)(cha)法(fa)；如果(guo)超(chao)(chao)聲(sheng)波發射器(qi)發射連續(xu)超(chao)(chao)聲(sheng)脈沖(chong)(chong)或周(zhou)期較長(chang)的(de)脈沖(chong)(chong)列，則在(zai)順流(liu)和(he)逆流(liu)發射時(shi)所接收(shou)到的(de)信號之(zhi)間便(bian)(bian)要產生相位差(cha)(cha)▽O,即(ji)▽O=w▽t=2wLu/cc式(shi)中，w為超(chao)(chao)聲(sheng)波角頻(pin)率(lv)。當測(ce)(ce)得▽O時(shi)即(ji)可(ke)(ke)(ke)求(qiu)出u,進而求(qiu)得流(liu)量(liang)Q。此(ci)法(fa)用(yong)測(ce)(ce)量(liang)相位差(cha)(cha)▽O代替了(le)(le)測(ce)(ce)量(liang)微小的(de)時(shi)差(cha)(cha)▽t，有利于提高(gao)測(ce)(ce)量(liang)精度。但存在(zai)者聲(sheng)速c對測(ce)(ce)量(liang)結果(guo)的(de)影響(xiang)。頻(pin)差(cha)(cha)法(fa)。為了(le)(le)消除聲(sheng)速c的(de)影響(xiang)，常采用(yong)頻(pin)差(cha)(cha)法(fa)。由(you)前可(ke)(ke)(ke)知(zhi)，上、下游接收(shou)器(qi)接受到的(de)超(chao)(chao)聲(sheng)波的(de)頻(pin)率(lv)之(zhi)差(cha)(cha)為▽f可(ke)(ke)(ke)用(yong)下式(shi)表示 ▽f=[（c+u）/L]-[(c-u)/L]=2u/L由(you)此(ci)可(ke)(ke)(ke)知(zhi)，只(zhi)要測(ce)(ce)得▽f就可(ke)(ke)(ke)求(qiu)得流(liu)量(liang)Q，并且此(ci)法(fa)與聲(sheng)速無關(guan)。超(chao)(chao)聲(sheng)波技(ji)術及其應用(yong)一、沒測(ce)(ce)量(liang)水位概況(kuang)。超(chao)(chao)聲(sheng)波流(liu)量(liang)計(ji)(ji)的(de)優(you)勢特(te)點：安裝(zhuang)方便(bian)(bian)。江蘇超(chao)(chao)聲(sheng)波流(liu)量(liang)計(ji)(ji)有哪些

時差(cha)法適用于少量雜質(zhi)，相(xiang)對純凈的滿(man)管道液體(ti)(ti)測量。山東分體(ti)(ti)式超聲波流量計哪家好

便(bian)攜(xie)式(shi)(shi)(shi)超(chao)(chao)聲(sheng)(sheng)波(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計現階段所存有(you)的(de)(de)(de)缺(que)陷主要(yao)是(shi)能(neng)測(ce)流(liu)(liu)體(ti)(ti)(ti)(ti)力學的(de)(de)(de)溫度范圍受超(chao)(chao)音(yin)波(bo)換(huan)能(neng)鋁及超(chao)(chao)聲(sheng)(sheng)波(bo)換(huan)能(neng)器與管(guan)路(lu)(lu)中(zhong)(zhong)間的(de)(de)(de)藕合原材(cai)料(liao)耐高(gao)溫水(shui)平的(de)(de)(de)限(xian)定(ding)，及其高(gao)溫下(xia)(xia)被測(ce)流(liu)(liu)體(ti)(ti)(ti)(ti)力學傳播聲(sheng)(sheng)音(yin)速率的(de)(de)(de)原始記錄(lu)不全。現階段在(zai)我國(guo)只有(you)用(yong)以(yi)精(jing)(jing)確(que)(que)測(ce)量(liang)(liang)(liang)(liang)200℃下(xia)(xia)列的(de)(de)(de)流(liu)(liu)體(ti)(ti)(ti)(ti)力學。此(ci)外(wai)，便(bian)攜(xie)式(shi)(shi)(shi)超(chao)(chao)音(yin)波(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計的(de)(de)(de)精(jing)(jing)確(que)(que)測(ce)量(liang)(liang)(liang)(liang)路(lu)(lu)線比(bi)一般流(liu)(liu)量(liang)(liang)(liang)(liang)計繁雜。這是(shi)由(you)于，一般工(gong)業生產(chan)計量(liang)(liang)(liang)(liang)檢定(ding)中(zhong)(zhong)液(ye)(ye)體(ti)(ti)(ti)(ti)的(de)(de)(de)水(shui)流(liu)(liu)量(liang)(liang)(liang)(liang)經(jing)常是(shi)每秒鐘多少(shao)米，而聲(sheng)(sheng)波(bo)頻率在(zai)液(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)(zhong)的(de)(de)(de)快速傳播約為1500M/s上(shang)下(xia)(xia)，被測(ce)流(liu)(liu)體(ti)(ti)(ti)(ti)力學水(shui)流(liu)(liu)量(liang)(liang)(liang)(liang)(總流(liu)(liu)量(liang)(liang)(liang)(liang))轉(zhuan)變帶來波(bo)速的(de)(de)(de)變化(hua)量(liang)(liang)(liang)(liang)較大(da) 也是(shi)10－3量(liang)(liang)(liang)(liang)級(ji)．若(ruo)要(yao)求精(jing)(jing)確(que)(que)測(ce)量(liang)(liang)(liang)(liang)水(shui)流(liu)(liu)量(liang)(liang)(liang)(liang)的(de)(de)(de)精(jing)(jing)確(que)(que)度為1%，則(ze)對波(bo)速的(de)(de)(de)精(jing)(jing)確(que)(que)測(ce)量(liang)(liang)(liang)(liang)精(jing)(jing)確(que)(que)度能(neng)以(yi)10-5～10-6量(liang)(liang)(liang)(liang)級(ji)，因(yin)而務必有(you)健(jian)全的(de)(de)(de)精(jing)(jing)確(que)(que)測(ce)量(liang)(liang)(liang)(liang)路(lu)(lu)線才可以(yi)完成，這也更是(shi)便(bian)攜(xie)式(shi)(shi)(shi)超(chao)(chao)音(yin)波(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計只有(you)在(zai)集成電路(lu)(lu)芯片技術快速發展趨勢的(de)(de)(de)前提條件(jian)下(xia)(xia)才可以(yi)獲(huo)得具體(ti)(ti)(ti)(ti)運(yun)用(yong)的(de)(de)(de)緣故。山東分(fen)體(ti)(ti)(ti)(ti)式(shi)(shi)(shi)超(chao)(chao)聲(sheng)(sheng)波(bo)流(liu)(liu)量(liang)(liang)(liang)(liang)計哪家(jia)好

上(shang)(shang)海(hai)(hai)威(wei)特(te)(te)(te)斯(si)智能(neng)科技(ji)(ji)有(you)限公司總部(bu)位(wei)(wei)于上(shang)(shang)海(hai)(hai)市嘉定區安亭鎮(zhen)墨玉南路1080號508室，是一家一般(ban)項目(mu)(mu)：技(ji)(ji)術(shu)(shu)服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)、技(ji)(ji)術(shu)(shu)開(kai)發、技(ji)(ji)術(shu)(shu)咨(zi)詢、技(ji)(ji)術(shu)(shu)交流、技(ji)(ji)術(shu)(shu)轉讓、技(ji)(ji)術(shu)(shu)推廣；電(dian)子元(yuan)器(qi)件(jian)批發；電(dian)子測量(liang)儀器(qi)銷售(shou)(shou)；電(dian)力電(dian)子元(yuan)器(qi)件(jian)銷售(shou)(shou)；電(dian)子元(yuan)器(qi)件(jian)與機(ji)電(dian)組件(jian)設(she)(she)備(bei)銷售(shou)(shou)；普通機(ji)械設(she)(she)備(bei)安裝服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)；電(dian)氣機(ji)械設(she)(she)備(bei)銷售(shou)(shou)；信息系統(tong)集成服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)；物(wu)聯(lian)網(wang)(wang)設(she)(she)備(bei)銷售(shou)(shou)；物(wu)聯(lian)網(wang)(wang)技(ji)(ji)術(shu)(shu)服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)；物(wu)聯(lian)網(wang)(wang)應用服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)；網(wang)(wang)絡(luo)設(she)(she)備(bei)銷售(shou)(shou)；軟件(jian)開(kai)發；信息技(ji)(ji)術(shu)(shu)咨(zi)詢服(fu)(fu)務(wu)(wu)(wu)(wu)(wu)（除(chu)依(yi)法須(xu)經(jing)(jing)批準的(de)(de)(de)項目(mu)(mu)外(wai)，憑(ping)營業執照依(yi)法自主開(kai)展(zhan)經(jing)(jing)營活動）。的(de)(de)(de)公司。上(shang)(shang)海(hai)(hai)威(wei)特(te)(te)(te)斯(si)深耕行(xing)業多年，始終以客(ke)戶(hu)(hu)的(de)(de)(de)需求為向導，為客(ke)戶(hu)(hu)提供高(gao)質量(liang)的(de)(de)(de)超聲波(bo)傳感器(qi)，超聲波(bo)液位(wei)(wei)計，超聲波(bo)流量(liang)計，磁致伸縮(suo)位(wei)(wei)移傳感器(qi)。上(shang)(shang)海(hai)(hai)威(wei)特(te)(te)(te)斯(si)致力于把技(ji)(ji)術(shu)(shu)上(shang)(shang)的(de)(de)(de)創新展(zhan)現成對用戶(hu)(hu)產品上(shang)(shang)的(de)(de)(de)貼(tie)心，為用戶(hu)(hu)帶來(lai)良好體(ti)驗(yan)。上(shang)(shang)海(hai)(hai)威(wei)特(te)(te)(te)斯(si)始終關注(zhu)自身，在(zai)風(feng)云變化的(de)(de)(de)時代，對自身的(de)(de)(de)建(jian)設(she)(she)毫不懈怠(dai)，高(gao)度的(de)(de)(de)專注(zhu)與執著使(shi)上(shang)(shang)海(hai)(hai)威(wei)特(te)(te)(te)斯(si)在(zai)行(xing)業的(de)(de)(de)從容而自信。

本文來自廣西桂林百利(li)種苗(miao)有限公司(si)：//a777a.cn/Article/452f6799480.html