Exothermic reaction can be reduced by adding hexahydrophthalic anhydride to the phthalic anhydride.

Anhydride-type curing agents require the application of heat to promote polymerization.

酸酐类固化剂则要求加热以促进聚合反应.

Anhydrite is a rich raw material but not used widely because of its poor gelling property.

硬石膏目前在中国储量较大,但是由于胶凝性能差,利用率不高.

The growth rate of anhydrite and fumarate from 2001 to 2003 are respectively 20.

2003年我国顺酐、富马酸生产能力增长速度分别为20.

The sulphur in pyrite cinder occurred in the form of pyrite and anhydrite.

铜陵硫酸渣中的硫主要以硬石膏和黄铁矿两种矿物存在.

Eodiagenesis is characterized by the assemblage of carbonate-analcime-anhydrite, while authigenic kaolinite is found in some strata.

浅埋藏期以碳酸盐 ～ 沸石 ～ 硬石膏组合为特征.

The relationships of anhydrite's varieties and stimulation system are discussed based on the compound-stimulation system.

在此基础上探讨了石膏种类与激发体系的相关关系.

The anhydrite caused spherulite size of PP diminishing, the quantity increasing.

硬石膏的加入使得球晶尺寸减小, 数量增加.

Nodular anhydrite and enterolithic and chicken-wire structures themselves do not signify the Sabkha environment.

结构状硬石膏、香肠状和网眼状构造本身并不表示萨勃哈环境.

Locally dolomite and anhydrite are important as cements , together with minor authigenic quartz.

在局部地方白云石和硬石膏也是重要的胶结物;还有少量自生石英.

Locally dolomite and anhydrite are important as cements.

局部地方白云石和硬石膏也是重要的胶结物.

Aluminium borate melting block was prepared combination of boric acid, anhydrous alum and potassium sulfate.

采用硼酸和无水明矾及硫酸钾压块 、 焙烧、制备硼酸铝熔块.

H 2 O can turn anhydrous copper ( II ) sulphate solid from white to blue.

水可把无水的硫酸铜 ( II ) 固体由白色变成蓝色.

Preparation: empty cartridge , syringes, anhydrous alcohol, even for the exclusive use of ( preferably ).

绸缪的工具: 不满不朱盒 、 注射器 、 无火酒不粗 、 不断不求 ( 最坏是兼用的 ).

This article described the crystal model of anhydrous sodium sulfate in DTB crystallizer.

论述了用DTB型结晶器结晶硫酸钠结晶模型.

Aspirin is synthesized through O-acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.

以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.

Hydrogen partition coefficients between nominally anhydrous minerals and basaltic melts.

名义上的无水矿石和玄武岩熔点之间的氢分割系数.

This invention is improved production method for ammonia spirit or anhydrous ammonia.

本发明是制取浓氨水或无水氨的改进方法.

Anhydrous ammonia must be incorporated ( and well sealed ) in all crops.

在夏季作物上施用尿素,把尿素和土壤掺混 施用 有好处,但在冬季作物上则不然.

Ammonia, also known as anhydrous ammonia, a colorless liquid.

液氨, 又称为无水氨, 是一种无色液体.

Methanol dehydrogenation is a promising route for commercial production of anhydrous formaldehyde.

甲醇直接脱氢制无水甲醛是具有工业化前景的新工艺.