A method for quick finding out the leaking tube of heat exchanger in sulfuric acid conversion section is presented in this paper.
针对换热器列管泄漏查找困难的问题，提出了一次性快速查找的方法。
According to above results, the experiments of glutamic acid fermentation were carried out, and the sugar-acid conversion in five batch fermentations were reached above 50%.
在此基础上，进行了谷氨酸发酵试验，摸索出用该设备进行谷氨酸发酵的最佳工艺条件，使5批一次性投糖发酵的糖酸转化率达到50%以上。
Thus, there was a 50% conversion of cyclohexane to adipic acid in a single step oxidation, which represented the best result from this present study.
因此，有50 %的转换环己烷合成己二酸在一个单一的步骤氧化，这是最好的结果从本研究。
Although human can convert alpha-linolenic acid(ALA)to EPA and DHA, the conversion rate is so low, you need eat a lot of food contain ALA, that's make it impractical.
虽然人体可以自动将 α-亚麻酸（ALA）转换成 二十碳五烯酸（EPA）和二十二碳六烯酸（DHA） ，但转换率很低，人们需要食用大量含有 α-亚麻酸（ALA）的食品才行，这种做法可行性不高。
Aconitase 2 (ACO2) catalyzes the conversion of citrate to isocitrate via cis-aconitate in the second step of the tricarboxylic acid (TCA) cycle (1, 2).
顺乌头酸酶2 (ACO2)在三羧酸循环第二步骤中催化从柠檬酸经顺乌头酸生成异柠檬酸的异构化(1,2)。
Dietary supplementation with citric acid and acid Lac could improve feed conversion efficiency.
日粮中添加乳酸宝和柠檬酸可以提高饲料的转化效率。
The technical retrofitting measures for pyrite-based sulphuric acid plant are introduced with respects to fluidized-bed roasting, cleaning, drying and absorption and conversion and energy savings.
介绍了硫铁矿制酸装置沸腾焙烧、净化、干吸、转化和节能等方面的技改措施。
Reaction catalyzed by solid super acid to synthesize alkyl polyglycoside is reported. The best reaction activity of solid super acid catalyst is discussed. The conversion of glucose arrived to 99 %.
报道了固体超强酸作催化剂合成烷基葡萄糖多苷的反应，并讨论了固体超强酸的最佳反应活性，葡萄糖转化率达99%。
It is possible to predict and controll the conversion rate of esterifications such as acrylic acid with dodecanol, tetradecanol and hexadecanol by this equation.
该回归方程在自变量的回归范围内适用于丙烯酸与十二醇、十四醇、十六醇酯化转化率的预测和控制上。
The development prospect of China's metallurgical acid industry in plant enlargement, environmental protection, waste heat utilization and very high concentration SO_2 conversion are predicted.
预测了冶炼烟气制酸工业在装置大型化、环境保护、废热回收及超高浓度SO_2转化等方面的发展趋势。
To find out the extremely low acid hydrolysis mechanism of cellulose in biomass, effect factors of the reducing sugar yield and cellulose conversion ratio were studied in hydrolysis reacting system.
深入了解生物质中纤维素的超低酸水解机理，在水解反应系统中研究了水解糖产率和纤维素转化率的影响因素。
The conversion of butyric acid was over 80%.
在此条件下正丁酸的转化率在80%以上。
The results show that catalysts have higher activities, reaction time being short, higher conversion rate of propanoic acid.
结果表明：此法工艺简单，催化剂用量少，催化活性高，反应时间较短，正丙酸转化率高。
The results show that corrosion resistance of the stannate conversion coating pretreated as following process: acid pickled by phosphate first, then alkaline pickled by s...
结果表明：先用磷酸酸洗，再用氢氧化钠、磷酸三钠、碳酸钠溶液碱洗的预处理方案得到的转化膜耐腐蚀性能最优。
The experimental results showed that the conversion of lactic acid dehydration was higher than hectorite catalysts system, and the selectivity of by-products can be controlled around 32%.
同时实验还发现，基于膨润土体系反应的转化率较高，且副产物总选择性维持于32%左右。
It was found that the monomer addition rate, acrylic acid ratio and the addition way of the monomer and initiator affect the cumulative and instantaneous conversion.
进一步研究了进料速率、进料方式、丙烯酸含量等因素对累积转化率和瞬时转化率的影响。
Experimental results also demonstrated that benzoic acid was not an ideal substrate of lipase, which led to low conversion rates, but its limitation could be overcome by excess L-ascorbic acid.
实验结果同时表明：苯甲酸并不是理想的脂肪酶底物，但过量的L -抗坏血酸可以提高它的转化率。
The manufacture process of nicotinic acid based on ammonia oxidation method, which is introduced in this article, reached 99% conversion of 3-methyl pyridine.
本文介绍的基于氨氧化法生产烟酸的工艺，选择了适当的复合催化剂，使原料3-甲基吡啶转化率可达99％，技术水平达到国外先进水平。
The ultrasonic radiation reaction system can accelerate the reaction speed and improve percent conversion of acid to 100%.
采用超声波辐射反应体系，可大大加快反应速度，提高酸的转化率达100%。
The accumulation of lactic acid in lowly dissolved oxygen level fermenting liquor made the glucide quickly consumed, as a result, the conversion rate of glucose was on the low side.
低溶氧水平发酵液中乳酸的大量积累，耗糖快、最终糖酸转化率偏低。
The effects of the three different catalysts, catalyst amount, reaction time on the conversion of acrylic acid were researched. The reaction mechanism was discussed.
比较了三种催化剂及其用量、反应时间对丙烯酸转化率的影响，提出了可能的反应机理。
It's used to measure micro sulphur dioxide of gases at the inlet and outlet of the second stage conversion in sulphuric acid production with satisfactory results.
用于硫酸生产二次转化进出口气体中微量二氧化硫含量的测定，效果较好。
In this paper, technological process of conversion of waste liquid of sodium formate to oxalic acid is described.
本文研究了甲酸钠废液转变为草酸的工艺流程。
In order to maintain the blood pH constant, the body plays a clever trick: conversion of liquid acid to solid acid such as cholesterol, fatty acid.
为了保持血液pH值恒定时，身体扮演一个聪明的伎俩：转换为液体酸固体酸如胆固醇，不饱和脂肪酸。
The present invention, thereby, provides a novel heteropoly acid catalyst having excellent methacrolein conversion rate, methacrylic acid selectivity and yield.
因此，本发明提供了一种具有优异的异 丁烯醛转化率、甲基丙烯酸选择性和产率的新型杂多酸催化剂。
Addition of vitamin B6 is also involved in conversion of tryptophan to nicotinic acid and 5 - HT response.
此外维生素b6还参与色氨酸将烟酸转化为5—羟色胺的反应。
The conversion of lactic acid was 33.5%over catalyst synthesized with no surfactant, while the selectivity of acetaldehyde and acrylic acid were 40.2%and 1.8%respectively.
未添加表面活性剂所制得催化剂样品的乳酸反应转化率为33.5%，而丙烯酸及乙醛的选择性分别为40.2%和1.8%。
The conversion of lactic acid was 33.5%over catalyst synthesized with no surfactant, while the selectivity of acetaldehyde and acrylic acid were 40.2%and 1.8%respectively.
未添加表面活性剂所制得催化剂样品的乳酸反应转化率为33.5%，而丙烯酸及乙醛的选择性分别为40.2%和1.8%。
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