“cleanup”的概念、定义、翻译、参考文献-科学参考

单词	cleanup
释义	cleanup [`klē´nǝp] ^{AEROSPACE ENGINEERING} Improving the external shape and smoothness of an aircraft to reduce its drag. ^ELECTRONICS Gradual disappearance of gases from an electron tube during operation, due to absorption by getter material or the tube structure. ^ENGINEERING The time required for a leak-testing system to reduce its signal output to 37% of the signal transmitted at the instant when tracer gases enter the system. ^{MINING ENGINEERING} 1. The collecting of all the valuable product of a given period of operation in a stamp mill or in a hydraulic or placer mine. 2. The valuable material resulting from a cleanup.
随便看	meridian passage meridian photometer meridian sailing meridian section meridian telescope meridian transit meridional meridional cell meridional circulation meridional difference meridional flow meridional focus meridional front meridional index meridional parts meridional plane meridional ray meridional wind Meridosternata merino merinthophobia merismite meristem meristic merit

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