“ultrahigh vacuum”的概念、定义、翻译、参考文献-科学参考

单词	ultrahigh vacuum
释义	ultrahigh vacuum [¦ǝl·trǝ`hī `vak·yǝm] ^PHYSICS A vacuum in which the pressure is of the order of 10^-10 millimeter of mercury or less.
随便看	Celyphidae cement cementation cementation factor cementation sinking cement bond cement-bond survey cement brick cement carrier cement channeling cement copper cemented carbide cemented lens cement gland cement gravel cement gun cementing basket cement injector cementite cementitious material cement kiln cement-lined casing cement log cement mill cement mortar

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