当温度达到熔点时, 金属就变成液体流出,并注入特殊的铸模中.When the temperature reaches melting point, the metal runs off as a liquid and flows into special modules.把熔化的金属倒入铸模。The molten metal is poured into the mould.将混合物注入已预热到同样温度的铸模内.The mixture ...
我已从一位可靠人士那儿获悉,这家公司经营得非常糟糕.I've heard from a reliable source that company is running very badly.我获悉新董事是墨西哥人.I read that the new director is a Mexican.我获悉失事的消息感到十分震惊.I was devastated by the news of the crash....
It had been known for some time that chemical reactions can be catalyzed by materials with large surface areas.人们早已知道，如果材料的表面积足够大，可引起催化反应。Modern technology catalyzed tremendous economic growth in China.现代技术促成了中国经济的巨大发展。T...
Diquat is a non - selective contact herbicide and desiccant , developed by ICI Plant Protection Division ( now Agrochemicals ).敌草快,是英国卜内门化学公司 ( 现改名先正达化学公司 ) 开发的 非 选择性接触除草剂和干燥剂.Regenerator is a crucial component in the li...