以二乙胺 、 二硫化碳、双氧水为原料,在硫酸的中和作用下合成戒酒硫, 研究了各反应条件的影响. Disculfiram was synthesized from diethyl amine, carbon disulfide and peroxide, and the reaction condition was studied.
Water tanks should be well lagged and the roof well insulated.水箱和屋顶都需要敷设严密的保温层。Are your hot and cold water pipes well insulated?你们的冷热水管包好隔热层了吗？This room is insulated against noise.这个房间隔音....
这就是分布参数.It is the parameter of distribution.静态和动态位移是这个参数的另一种分类方法.Static and dynamic displacement is another method of categorizing this parameter.这两种参数现被称为压缩模量.These two parameters are nowadays called the modulus of comp...
Adoption can fail for all kinds of reasons.收养不成功可能有各种原因。She put the baby up for adoption.她提出要让人收养那个婴儿。The senator urged against the adoption of the measure.那参议员极力反对采取这项措施....