查询词典 sulfide

Ni 2+ and Co 2+ can be precipitated with Bi 3+ in sulfide when Bi 3+ and sodium sulphide is added to water sample.

在中性或弱碱性条件下，向被测水样中加入适量Bi3＋和Na2S，使水样中的Ni2＋、Co2＋和Bi3＋以硫化物的形式沉淀下来。

In the test,the high purity white sodium sulphide crystal with concentration of 45% Na_(2)S taken as raw material,anhydrous sodium sulfide is obtained by drying it in vacuum.

高纯度的无水硫化钠是合成高性能特种工程塑料聚苯硫醚的优质原料。

Some industrial reduction technologies, such as zinc powder method, hydrazine hydrate method, sodium sulfide-zinc powder method etc, were analyzed and compared.

对生产工艺中各种还原方法（锌粉法、水合肼法、硫化钠－锌粉法等）进行了分析对比，指出硫化钠－锌粉法是一种适于工业化的还原方法。

Kraft process: Chemical method for producing wood pulp using caustic soda and sodium sulfide as the liquor in which the pulp wood is cooked to loosen the fibres.

硫酸盐制浆法：生产木浆的一种化学方法，用苛性钠和硫酸钠作为溶液，把纸浆原料放在里面煮，使其纤维松释。

The floatation process of a multi-metal sulfide ore from Anwang Silver-lead Mine in Shaaxi,China,is investigated.

研究陕西省山阳安旺铅银矿多金属硫化矿石浮选工艺。

To explore the compositional characteristics and origin of organic matters in ore fluids of middle-high temperature (＞200℃) hydrothermal sulfide vein deposits, organic geochemistry research was done on the Dajing silver-copper deposit in the Inner Mongolia Autonomous Region.

为探索中高温(＞200℃)热液脉状硫化物矿床成矿流体中有机组份的特征、来源及形成机理，本论文选择内蒙大井银铜矿为研究对象，在野外观察、室内光薄片鉴定及矿物流体包裹体观测的基础上，进行了矿床有机地球化学研究。

Salt water converts silver into silver sulfide...

海水让银变成硫化银

A new experimental method to test the oxidation and self-heating properties of sulfide ore samples was introduced.

摘 要：介绍一种新的测试硫化矿样氧化自热性质的方法。

The defective materialshave since been found by state and federal agencies to emit "volatilesulfur compounds," and contain traces of strontium sulfide, which canproduce a rotten-egg odor, along with organic compounds not found inAmerican-made drywall.

有缺陷的材料，至今已发现了州和联邦机构发出&挥发性硫化物&，并含有锶硫化物，它可以产生臭鸡蛋气味，以及有机化合物，在美国没有发现，到包装的痕迹。

Consumer Product Safety Commission, the agency charged with protecting Americans from unsafe household products, last week released interim remediation guidelines and said certain Chinese drywall samples emitted hydrogen sulfide, a flammable gas with a rotten-egg smell, at rates 100 times greater than non-Chinese drywall samples.

Consumer Product Safety Commission上周发布临时性补救指导，称中国的石膏板样品发出的硫化氢，是非中国产石膏板样品的100倍。硫化氢是一种伴有臭鸡蛋味的可燃气体。美国消费者商品安全委员会是一家负责保护美国人免遭不安全家用产品侵害的机构。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。