In traditional industry, people usually use acidic solution to clean metal parts .

在傳統(tǒng)工業(yè)中天天一级免费看，金屬零件的清洗是用酸性溶液的方法進(jìn)行的美女裸体一级作爱视频。

In order to solve the problem, CaO and MgO are added to the chlorides to reduce the acidness.

因此久久精品精品久久，本文采用試驗(yàn)方法在鹵化物中添加CaO和MgO后測(cè)定其吸濕五月天色欲综合网、保水和中和酸性效果等黄网占在线，以便拓寬其應(yīng)用領(lǐng)域能看av的网站。

To establish effective methods for selective isolation of acidophilic filamentous actinomycetes from acidic soils, and to investigate their genus and species diversity.

針對(duì)酸性土壤中的嗜酸絲狀放線(xiàn)菌，建立有效的選擇性分離方法免费一级a片在线播放视频，并了解其多樣性免费看av的在线网站。

In this study, 252 acidophilic actinomycetes were isolated from 10 acidic soil samples collected in Jiangxi Province, Yunnan Province and Beijing with dispersion and differential centrifugation approach.

實(shí)驗(yàn)中，從江西黄色三级人人操、云南九九激情视频在线看、北京采集的10份酸性土樣，采用分散和差速離心法和常規(guī)分離方法分離出嗜酸放線(xiàn)菌252株日韩激情中文字幕视频在线。

Progress in the taxonomy of the actinomycetes and acidophilic actinomycetes was introduced in this paper. The diversity of acidophilic rare Actinomycetes from acidic soil was studied and a polyphasic study was undertaken to establish the taxonomic position of three soil isolates.

本文介紹了放線(xiàn)菌和嗜酸放線(xiàn)菌的分類(lèi)學(xué)研究進(jìn)展国产亚洲黄色录像，研究了我國(guó)酸性土壤中稀有放線(xiàn)菌的生物多樣性，并采用以分子分類(lèi)91日韩在线视频免费观看、系統(tǒng)發(fā)育學(xué)分析国产一区二区三区久久、化學(xué)分類(lèi)、形態(tài)特征和生理生化特性相結(jié)合的多相分類(lèi)方法對(duì)3株土壤新分離菌株進(jìn)行了分類(lèi)學(xué)研究欧美湿身诱惑超碰在线。

The selective isolation approach established here is robust for isolating various acidophilic filamentous actinomycetes from soil. Acidic soils in Jiangxi Province harbor abundant and diverse acidophilic actinomycetes.

所建立的選擇性分離方法可用于土壤嗜酸絲狀放線(xiàn)菌的高效分離午夜毛片视频高清不卡免费；江西酸性土壤含有豐富多樣的嗜酸絲狀放線(xiàn)菌種屬。

The reaction between acridine yellow and nitrite nitrogen in acid medium was studied.

利用在酸性介質(zhì)中色哟哟精品入口，吖啶黃與亞硝酸根反應(yīng)并在波長(zhǎng)436 nm處的吸光度與亞硝酸根濃度呈線(xiàn)性關(guān)系a片黄这线免费观看1区，提出并建立了測(cè)定亞硝酸鹽氮的新方法。

This effect is shown to be correlated with the conformational changes of acyl backbone induced by aniso-damine.

采用拉曼差光譜的方法国产绿帽精品一级视频，進(jìn)一步研究了藥物的苯環(huán)與酸性磷脂的疏水相互作用肏屄手机视频播放。

Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南紅豆杉中抗癌活性物制備工藝研究方法：利用正交設(shè)計(jì)試驗(yàn)L9(3~4)確定原料藥提取工藝為：10倍量90％乙醇提取兩次，第一次40分鐘午夜小电影日本欧美，第二次30分鐘日本视频www.色；醇提液用10倍量水沉；沉淀加6倍量石油醚40℃脫脂色色色色色色色色五；用1mol／L的NaOH溶液堿洗国产a片播放网址，除去酸性雜質(zhì)；以堿性氧化鋁柱，以環(huán)己烷／丙酮為洗脫溶劑三级片手机免费看中文视频，在環(huán)己烷-丙酮(6：4)段富集到所需活性部位一区二区亚洲，洗脫劑用量為3VB。

Method］ First of all,esters and lactone reacted with hydroxylamine and formed hydroxamic acid under alkaline conditions; secondly,hydroxamic acid reacted with Fe3+ and generated amaranthine hydroxamic acid-iron complex; finally,esters and lactone contents were measured indirectly at the wavelength of 506 nm.

方法］首先欧美黄色午夜，酯和內(nèi)酯在堿性條件下與羥胺反應(yīng)生成異羥肟酸欧美在线亚洲一区二区欧美；然后，在酸性條件下異羥肟酸又與Fe3+絡(luò)合生成紫紅色的異羥肟酸鐵絡(luò)合物色色黄片；最后久久精品9999热，在506 nm波長(zhǎng)下間接測(cè)定酯和內(nèi)酯含量。