查询词典 acid process

It was shown that the main compositions of the stones were uric acid dehydrate and ammonium urate, so we derived the mechanism of stone formation from the metabolic process of the two stone compositions, meanwhile, we raised some advices on the diagnosis and the treatment of the disease.

目前已知，这种结石的成分主要是二水尿酸和尿酸铵，所以本文通过这两种成分的代谢过程来逆向推导这种特殊结石形成的过程，同时也提出一些相关的诊断和治疗上的建议。

There is akey stage of nucleic acid metabolism in the process of vernalization in winter wheat.

在冬小麦春化进程中存在着一个核酸代谢的关键期，为了探讨春化作用的分子机理，以不春化及脱春化的冬小麦京冬1号（Triticum aestivumL.cv。

This process utilizing modern efficient wire gauze wave-like packings sepa-rates three isomers of MNT(ortho-.meta- or para-), then the O-MNT or P-MNTis nitrated to produce military TNT by a mixture of nitric and sulfuric acid.

本工艺利用近代高效的金属丝网波纹填料分离MNT的三种异构体，然后用硝硫混酸把邻一或对一MNT硝化成军品TNT，这样可避免亚硫酸钠溶液精制TNT的工序。

A biomass hydrolyzing process for producing glucose was investigated,through concentrated sulfuric acid hydrolysis of wood chips.

以木屑为研究对象，进行浓硫酸水解，得到产物单糖。

Therefore esterification crosslinked reactionbetween polyearboxylic acid and wood can be quantitatively determined.According toexperiment results of stereoscopic configuration choices by crosslinking agents,crosslinkingreaction between model of reaction intermediate and wood,and the intermediate characteristic incrosslinking reaction,crosslinking reaction intermediate was proofed.We can infercrosslinking reactions between polycarboxylicacid and wood want through a mechanism of twosteps reaction process,the first cyclic anhydrides were formed as intermediates by dehydratingbetween hydroxyls in polycarboxylic acids,second esters were occurred by substitution reactionbetween wood hydroxyls and cyclic anhydrides.

从而可全面定量表征木材与多元羧酸类化合物的酯化交联反应；依据交联剂立体构型选择性、反应中间体模型物与木材的交联反应和交联反应中间体的波谱特征实验结果，证实了交联反应中间体，因此可以推测：多元羧酸类化合物与木材化学组分的交联反应是经历两步反应的机理，首先多元羧酸中相邻羧基的羟基之间脱水形成五元环酸酐中间体，然后木材的羟基与酸酐发生亲核取代反应形成酯。

Most of the dyes tested can be degraded anaerobically in varying degrees, except 2 xanthene dyes, C. I. Mordant Red 15 and C. I. Acid Red 52, the former is even toxic to anaerobic process.

3大多数被试染料在厌氧条件下都具有不同程度的可降解性，只有2种结构为氧杂蒽的染料，酸性媒介桃红3BM和酸性玫瑰红B，是难降解的，前者对厌氧消化过程还具有毒性。

Some new technological measures,such as new reactors,gel method to remove silicon,direct dissolve acid to recrystallizate and direct calcine from zirconyl chloride,were used to reform zirconium dioxide production process.

文摘：采用新型反应器及胶凝除硅、直接酸溶重结晶、直接煅烧等技术对二氧化锆的生产工艺进行了改革，降低了原材料消耗及能耗，减少了废液排放量，并将回收的废物加工成副产品白炭黑，在生产过程中防治污染。

Such a process is particularly useful in the production of difunctional monomers and intermediates in the synthesis of adipic acid.

这样一种方法对于制备双官能单体和合成己二酸的中间体特别有用。

Adipic acid is a most important organic synthetic intermediate, and much attention has been paid for its green synthesis process because of disadvantages in current technology.

己二酸是一种非常重要的有机合成中间体，由于传统生产工艺的局限性，其绿色合成方法备受研究者的关注。

Compound 2 had allochroic processes in polar solvents such as methanol or DMF. Acids or alkali such as acetic acid or NaOC_2H_5 also showed apparent influence on the allochroic process.

并对化合物2的变色过程进行了研究，发现该化合物对极性溶剂如甲醇、N，N-二甲基甲酰胺和酸或碱如乙酸、乙醇钠等具有良好的变色过程。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。