In order to discover acid-tolerant Rhizobium meliloti that can nodulate alfalfa high-effectively on acidic soil, researches were explored to isolate rhizobia from alfalfa nodules on acidic soil (pH5.2), methods based on the thesis of adaptive acid-tolerance response of the Rhizobia were adopted, six strains were isolated, which could grow on solid medium with pH4.8 steadily. In addition, the nodulation characteristics, growth curves and mean generation time under different acidity of the strains were examined.

為獲得能夠使紫花苜蓿在酸性土壤中高效結(jié)瘤的耐酸根瘤菌黄色视频搞得啊啊啊叫，該研究從酸性土（pH5.2）上生長(zhǎng)的紫花苜蓿根瘤中分離到若干菌株国产三男一女4P免费视频下载，利用根瘤菌對(duì)酸的適應(yīng)性耐受反應(yīng)篩選到六株能夠在pH4.8的固體培養(yǎng)基上穩(wěn)定生長(zhǎng)的菌株，并檢測(cè)了這六株菌的結(jié)瘤特征俄国av在线播放、不同酸度下的生長(zhǎng)曲線和平均代時(shí)黄av一级毛片。

The quantity of trace arsenic in grain and soil was determined by hydride nondispersion atomic fluorescence method.

本文采用氫化物無色散原子熒光法測(cè)定糧食和土壤中微量砷含量。實(shí)驗(yàn)中選擇了測(cè)試時(shí)的最佳條件狠狠干大黄片，包括介質(zhì)酸度黄色网站在线看在线看在线看、還原劑KBH_4的濃度和流速、載氣流量桃色阁、原子化溫度等久久亚洲一级无码毛片。

The experimental results show that the acidities and the nounal pentane insolubles of the died fuels increase rapidly and the colors darken gradually with the increasing of oxygen quantities absorbed by the died fuels.

實(shí)驗(yàn)結(jié)果表明，隨吸氧量的增加91国自产视频在线观看，柴油的酸度和戊烷不溶物含量增加久久久免费黄色视频不卡，顏色變深。

Balanced acidity with oaky flavors.

酸度平衡帶出木味日韩欧美色图小说综合站。

The index of flame retardant property,material,product structure and relevant method of test of the antiflaming flexible cable is established according to the standard of GB/T18301-2001《the Third Part of Burning Test of cables in the Condition of flame:Method of Buring Test of Bunchy Wires and Cables》.The Cable will emanate the bad gas in buring to causethe the second calamity,so the smoke capacity of the cable in burning should be tested according to the standard of IECl034-2(1991)《the Second Part of Method of Smoke Concentration Test ofCable 1n Burning:Procedure and Requirement ofTest》The Liberation of Gas 1n burning is tested according to the standard of IEC754-2(1991)《the Second Part of Test of Liberatlon of Burning Materlal from Cable:Method to Measure the ACidity with the Measured PH and Conductlvltv》.

對(duì)阻燃型軟電纜所要求的阻燃性能指標(biāo)18禁无码免费高黄肉网站，是根據(jù)GB/T18301-2001《電纜在火焰條件下的燃燒試驗(yàn)第3部分：成束電線或電纜的燃燒試驗(yàn)方法》標(biāo)準(zhǔn)的規(guī)定而確定其電纜的材料要求、產(chǎn)品結(jié)構(gòu)和相應(yīng)的試驗(yàn)方法人人操人人搞人人爱；對(duì)于耐火性試驗(yàn)国产亚洲午夜福利专区，并考慮到電纜在火焰中會(huì)散發(fā)有害氣體，造成&二次災(zāi)害&操女人的屄的网站，所以還規(guī)定了對(duì)電纜燃燒時(shí)發(fā)煙量進(jìn)行試驗(yàn)，按IECl034-2(1991)《電纜在特定條件下燃燒的煙濃度試驗(yàn)方法第二部分試驗(yàn)步驟和要求》以及燃燒時(shí)析出氣體按IEC754-2(1991)《取白電纜的村料燃燒時(shí)析山氣體的試驗(yàn)第二部分用測(cè)量PH值和導(dǎo)電率來測(cè)量氣體酸度的方法》進(jìn)行試驗(yàn)30分钟黄色视频永久免费的网站。

Its organoleptic carachteristics underline the acidity degree and the level of peroxides.

其感官特點(diǎn)對(duì)它的調(diào)酸度和過氧化物的含量要求很高/免费A级毛片aV无。

The classification is done on the basis of yield/hectare, quality, sugar/acid relation and organoleptic.

分類完成是根據(jù)產(chǎn)量/公頃數(shù)、質(zhì)量国产91ⅴ在线精品免费观看，糖份/酸度和感官一级二级毛片18岁禁看视频黄,。

The effects of acidity and temperature on the fluorescent characteristics of N-N-bis-(O-Carboxylphenyl)-Oxamide have been studied in details.

本文首次研究了酸度、溫度對(duì)對(duì)稱草酰胺：N-N-二－鄰羧基苯基草酰胺熒光特性的影響欧洲性交网。

The analysis of X-ray diffraction and scanning electron microscope energy dispersion spectra show that the primary hydrolysis products of antimony pentachloride and its hydrochloric acid solution are amorphous antimony oxide rather than SbO2Cl.

X射線衍射和掃描電鏡能譜分析表明：五氯化銻及其鹽酸溶液的初始水解產(chǎn)物不是SbO2Cl黄大片视频，而是一種非晶態(tài)銻氧化合物；隨著水解母液酸度的降低影音先锋在线网站，五氯化銻溶液水解產(chǎn)物陳化五天后的晶型由非晶態(tài)向晶態(tài)變化国内自拍日韩高清视频在线；五氯化銻溶液水解產(chǎn)物經(jīng)無水乙醇洗滌后水解產(chǎn)物仍為非晶態(tài)，而經(jīng)蒸餾水洗滌雖主要為非晶態(tài)日本一区二区黄色，但有少部分結(jié)晶的Sb2O5·4H2O晶體存在9999热。

objective:to study the effects of mice and rats' gastrointestinal frnction on phellodendron amurense and its different processed products.methods:decoction of phellodendron amurense and its different processed products were fed to mice and rats,to observe the gastric emptying and gastrointestinal movement of mice;to determined the gasteic juice's acidity of rats by titration,and the pepsin was measuerd by mett's method.

摘 要：目的：研究黃柏及其不同炮制品對(duì)小鼠及大鼠胃腸功能的影響。方法：以黃柏及其不同炮制品的提取物灌胃五月丁香综合在线视频，觀察小鼠胃排空及小腸推進(jìn)情況日韩伦理片精品视频网站免费；觀察不同藥物對(duì)大鼠的胃液分泌情況的影響少妇漫画爆乳同人志全彩，用滴定法對(duì)大鼠的胃液的總酸度進(jìn)行測(cè)定，用改良mett氏法對(duì)大鼠的胃蛋白酶活性進(jìn)行測(cè)定免费日本黄色。