At a pressure,methylcyclohexyldimethoxysilane is prepared by reaction of methyltrimethoxysilane with cyclohexyl chloride Grignard reagents in a pot.Factors of influence such as solvent type and amount, molar ratio of raw materials, reaction temperature, time and pressure are investigated.In suitable conditions,yield of the title compound can reach 90 5%.
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The melted ABS is struck at a pressure of 25 tons to 150 tons — depending on the type of brick being made — with the metal molds.
融化的ABS塑料被金属模具被施以高达25 ~ 150吨(取决于所制作的零件的种类)的压力之中。
All I can say in justification of her actions is that she was under a lot of pressure at work.
我唯一能为她的行为辩解的理由是她工作压力很大。
The burger business faces more pressure from regulators at a time when it is already adapting strategies in response to shifts in the global economy.
在汉堡产业已经在调整战略以应对全球经济变化之际,它还面临着来自监管机构的更多压力。
The surprise visit came at a time when the United States and other countries have been putting more pressure on North Korea.
VOA: special.2009.08.08
We could just collect a bunch of data. For a material .What's the volume it occupies at some pressure and temperature?
对一种物质我们可以得到一系列测量数据,在给定的温度和气压下,它的体积是什么?
It's a state function, so we're at constant temperature and pressure, and now we want to consider some chemical change or a phase transition or you name it.
这就是态函数,我们处于恒定的温度和压强之下,然后考虑某些化学变化或者相变,或者你想考虑的东西。
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