查询词典 acid ester

The cumulative risk of various alkyl- or aryl-substituted sulfonic acid ester impurities should be taken into account.

需要考虑多种烷基或芳基磺酸酯杂质的累积风险。

The synthetic process for a new plasticizer used in low temperature, dibutyl nylonic acid ester, was introduced.

介绍了一种新型耐寒增塑剂尼龙酸二正丁酯的合成工艺，用价廉、易得的尼龙酸(由制己二酸母液中获得的C4～C6混合二元酸)及正丁醇为原料，浓硫酸为催化剂，经酯化、脱醇、中和、沉降及减压蒸馏等工序而制得产品。

The epoxide fatty acid ester is the one in which it contains one epoxide group at least.

环氧脂肪酸酯为其内的该脂肪酸包含至少一个环氧基团。

Also in 2006 an additional investment of five million yuan of new fat acid ester workshop.

公司于2006年又追加投资500万元新建了酯肪酸车间。

The main products include 2715 PVC fibred-glass tubing, self-extinguishing silicone tube, Chatham acid ester glass tube, silicone rubber paint tube glass, PVC Casing Series(hardy tube, tube migration-resistant, non-toxic PE pipe, pipe stripes), plastic casing fibred outside silicone rubber, plastic outer casing fibred silicone rubber, polyester film insulating paper, fibred paper.

主要产品有2715聚氯乙烯玻璃纤维套管、硅树脂自熄管、内烯酸酯玻璃漆管、硅橡胶玻璃漆管、PVC套管系列：耐寒管，耐迁移管，无毒PE管，条纹管，硅橡胶内胶外纤套管、硅橡胶内纤外胶套管、聚酯薄膜绝缘纸、纤维纸。

Keywords: fatty acid ester; mineral catalysis; low temperature; hydrolysis and hydrocarbon generation; kinetics

中文关键词：脂肪酸酯；矿物催化；低温；水解生烃；动力学

The average recoveries of benzene, toluene,-xylenes, o-xylene are from 97.21% to 103.10% and the RSDs are from 0.12% to 0.95%. And the average recoveries of Phthalic acid ester are from 96.01% to 102.02% and the RSDs are from 0.92% to 2.46%.

2采用PTFE膜过滤前处理法，首次建立了涂料中苯系物和邻苯二甲酸酯类环境激素的同时测定方法，并对分析方法作了准确度、精密度以及实验室间验证。

The paper summarizes the environmental hormone behavior,source and exist in g situation of phthalic acid ester pollutants in air,water,organism and sediment.

该文叙述了环境中邻苯二甲酸酯类污染物的环境激素行为、来源及在环境空气、水体、生物、底质中的存在情况。

Air ; Phthalic acid ester ; Monitoring method

大气；邻苯二甲酸酯；监测方法

To study the content of phthalic acid ester in edible oil wrapped up in plastic container and the condensate of its fume.

了解食用油和厨房油烟冷凝物中酞酸酯类增塑剂的含量。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷