查询词典 aluminium ammonium sulfate

The R f value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5∶5∶3∶1 in volume).

经纸层析鉴定，以吡啶、乙酸乙酯、水和冰醋酸按体积比 5∶5∶3∶1组成的溶剂系统进行展层，氨基葡萄糖硫酸盐的Rf 值为 0 。36。

The Rf value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5:5:3:1 in volume).

经纸层析鉴定，以吡啶、乙酸乙酯、水和冰醋酸按体积比5：5：3：l组成的溶剂系统进行展层，氨基葡萄糖硫酸盐的Rf值为0.36。

If you print out the样稿black block, black, and the toner will stick Photo taken elsewhere, this means that the surface of hot roll has been or injury, if minor, can be used after cleaning (but not for the lost paper sulfate ), if seriously, only the replacement of the heating roller.

如果打印出来的样稿出现黑块、黑条，以及将图文的墨粉粘带往别处，这表示热辊表面已被或伤，若较轻微，清洁后可使用，若严重，则只有更换加热辊了。

Cartridge:, the print cartridge life cycle of two or more generally, the chemical shelf-life may also be at more than one year;, because raw materials, recycling, and cartridge production in line with the international environmental protection standards also reached the physical properties of ISO standards;, we test the penetration of toner capacity and firmness to ensure that no edges when printing machine, non-proliferation, water does not fade, and with permanent;, we in the production of selenium drum, press the production of technical standards for irrigation powder, test print number of sheets to ensure that the cartridges produced by the best of prices;, the plate making capacity toner cartridges, we have to do rigorous testing, especially the toner to the paper sulfate infiltration capacity, to ensure that cartridges can meet the special needs of the industries;, cartridge in the print version of the black and white version, ghost version, gray version, self-Edition, Standard Edition, such as a number of parameters, we ensure that the production Photo print cartridge outenough bright, clear enough.

硒鼓：①、硒鼓的打印寿命一般在两个周期以上，其化学保质期也可在一年以上；②、由于原材料的再循环性，硒鼓的生产符合国际性的环保标准，其各项物理性能也达到ISO标准；③、我们检验碳粉的渗透能力和牢固度，保证在打印图文时无毛边、不扩散、遇水不退色，且具有永久性；④、我们在生产硒鼓时，按生产技术标准灌粉，检验打印张数，保证生产出来的硒鼓具有最好的性比价；⑤、硒鼓的制版能力，我们做到严格检验，特别是碳粉对硫酸纸的渗透能力，保证硒鼓能满足于特殊行业的需求；⑥、硒鼓在打印时的黑版、白版、鬼影版、灰版、自检版、标准版等多项参数，我们保证所生产出来硒鼓的打印图文够黑、够亮、够清晰。

Film, sulphuric acid paper haihong-type: this type of original, exposure time, should be carefully handle, because some of the pictures and texts used in film than sulfate for paper document the required exposure time to increase twice as much, or even better, this type of original in exposed not only to ready a sheet of typing paper to retaining to part of the exposure time, but also to prepare a ratio of sulphuric acid paper size large waste PS version mastering sulfuric acid paper blocked the view of typing paper, and the film also exposure, this piece of PS version is good to all of retaining this side of sulfuric acid paper for extending the original copy for the last half of the original version, so that the exposure time of light and dark sides.

软片、硫酸纸参半型：这栽典范榜样的原版，在曝平工夫上，更答不苛澈底不天把持，因为用软片的一些图不白给比用硫酸纸的图不白所需曝平工夫给补充二倍，甚至更众些，这栽典范榜样的原版在曝平时，不但给绸缪好一张打字纸来挡去一局部曝平工夫，而且还给绸缪一块比硫酸纸面积稍不小一不面的宝PS版，在把持好硫酸纸遮关打字纸，而软片一面还给曝平的环境下，这块PS版不离起到残部挡好硫酸纸的这边，以延不幼软片这半版原版的曝平工夫，使双方的图不白深浅分歧。

Bakeout pboblems sulfate paper effects print, aliquation wrinkling untrue.

烘烤时给制止硫酸纸起皱，感化晒版呼气不虚假。

N-methylmaleimide was prepared by using dimethyl sulfate as methylation reagent.The paper investigated the addition of N-methyl-3,4-dibromomaleimide and indolylmagnesium bromide,and then 2-bromo-3-(1H-indolyl-3-yl)-N-methylmaleimide and 3,4-bis(1H-indolyl-3-yl-)-N-methyl-maleimide were obtained.

对吲哚在溴乙烷和镁作用下生成吲哚溴化镁，而后与3，4－二溴－N－甲基马来酰亚胺的加成反应进行了研究，合成了2－溴－3－(1H－吲哚－3)－N－甲基马来酰亚胺，并对反应条件进行了改进，研究了反应温度和原料配比对反应的影响。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

氯代有机物一般都是典型的持久性环境污染物，其中部分氯代有机物还是环境激素类物质，例如，滴滴涕、林丹和六氯苯等，这些氯代有机物在环境中的迁移转化一直是国际环境化学领域的热点、重点课题。氯代有机物进入环境水体后，成为沉积物吸附态有机污染物的重要成分，天然水沉积物经常处于缺氧状态。因此，研究氯代有机物在天然水体沉积物中的缺氧脱氯行为是非常必要的。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分别采用不外加碳源和维生素B〓外加碳源（包括乳酸钠、丙酸钠或乙酸钠）、外加维生素B〓以及同时外加碳源和维生素B〓的方法，考察了p，p'-DDT、γ-HCH和HCB三种氯代有机污染物单独或混合存在下，在辽河沉积物中缺氧脱氯降解的情况，主要得到以下结论

ABSTRACT To investigate the easible application of biomolecule purification by the foam separation process. Polymyxin E sulfate solution was subjected as an example being applied to this process development.

探讨泡沫分离技术有效应用于生物分离过程，指出被分离的生物表面活性物质在体系中的性能研究的重要性。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48