查询词典 formic

The conventional process for the synthesis of rubber antioxidant 4020 from the 4-anino diphenylamine and methyl isobutyl ketone under high pressure can be replaced by a new three-step process using p -aminophenol, methyl-isobutyl ketone, formic acid and aniline as raw materials.

以橡胶防老剂4020合成新工艺小试条件为依据，完成了放大试验过程的工艺研究，改变了传统的在高压下以较大分子为原料合成橡胶防老剂4020的工艺路线。

Electromagnetic stirring and oscillation bath were used to prepare Pd/ catalyst for the decomposition of formic acid,and the effects of activated carbon modification and preparation methods to catalytic activity were investigated.

采用磁力搅拌法和水浴振荡法制备应用于甲酸分解的Pd/活性炭催化剂，研究了活性炭载体改性和制备方法对催化剂分解甲酸性能的影响。

Only formic, lactic, acetic, and oxalic acids, menthol, thymol, eucalyptol, and camphor may be used for Varroa control

只有蜂酸、乳酸、醋酸、草酸、薄荷醇、麝香草酚、桉油精和樟脑可被用于Varroa 控制。

Formic acid, lactic acid, acetic acid, oxalic acid, menthol, thymol, eucalyptol or camphor are used preferably to chemically synthetised products in cases of infestation with Varroa jacobsoni.

万一受到蜂螨群袭，蚁酸、乳酸、醋酸、草酸、薄荷醇、麝香草酚、桉油精或樟脑的使用优先于化学合成的药品。

The paper introduces method and step of determination formic acid and acetic acid in exhaust gas by ion chromatography.

阐述了离子色谱法测定废气中甲酸、乙酸含量的方法和步聚。

PTA namely choice is right benzene 2 formic acid, it is the important raw material of chemical fibber industry.

PTA即精对苯二甲酸，是化纤工业的重要原料。

Catechins were separated and detemined by linear gradient elutions for the rate of flow and concentration, with water, methanol, formic acid and dimethyl formamide as mobile phase.

在选定的色谱条件下每种成分在各自的浓度范围内均具有较好的线性关系，样品的回收率为93 65%～98 95%，相对标准差为0 69%～2 26%。

One link they found was a compound called formic acid or formate.

他们已经发现一种被称为甲酸的物质可能在其中起作用。

The main products of xylose decomposition were furfural and formic acid.

在实验范围内，木糖分解反应的活化能为123.27kJ／mol。

In order to reduce the corrosion of acidic paint stripper to aeronautical metals and provide with better anti-corrosion additive for AIL4130, TC4, LY12, and 20(superscript #) steel, a series of inhibitors and their composite were investigated. Weight loss experiment, Tafel curves measurement and SEM observation were carried out for the above metals in the formic acid solution which was normally used in the paint stripper. The experimental results indicate that the optimizing composite inhibitor consists of sodium benzoate, 2-thiourea, hexamethylenetetramine, sodium laurylsulfonate and 1, 2, 3-benzotriazole.

为降低酸性脱漆剂对飞机金属材料的腐蚀，以脱漆剂中经常使用的甲酸水溶液为研究介质，以AIL4130、TC4、LY12、20钢等材料为研究对象，通过腐蚀失重法、塔菲尔曲线测量和SEM观察，筛选出对以上各金属材料缓蚀效果较好的复配缓蚀剂体系，即苯甲酸钠、硫脲、六次甲基四胺、十二烷基磺酸钠、苯并三氮唑等缓蚀剂的优化组合。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。