“selector”的概念、定义、翻译、参考文献-科学参考

单词	selector
释义	selector [si`lek·tǝr] ^{CIVIL ENGINEERING} A device that automatically connects the appropriate railroad signal to control the track selected. ^{COMPUTER SCIENCE} Computer device which interrogates a condition and initiates a particular operation dependent upon the report. ^ELECTRICITY An automatic or other device for making connections to any one of a number of circuits, such as a selector relay or selector switch. ^ENGINEERING 1. A device for selecting objects or materials according to predetermined properties. 2. A device for starting or stopping at predetermined positions. ^{MECHANICAL ENGINEERING} 1. The part of the gearshift in an automotive transmission that selects the required gearshift bar. 2. The lever with which a driver operates an automatic gearshift. ^METALLURGY A converter that separates purified copper from residue in a single operation.
随便看	near-field noise near-field scanning optical microscope near-infrared radiation near-infrared spectrophotometry nearly free electron method near miss near point near ring nearshore nearshore circulation nearshore current system nearsightedness near stars nearthrosis near-ultraviolet radiation near wilt neat cement grout neat line neat plaster neatsfoot oil neat soap Nebaliacea Nebraskan drift Nebraskan glaciation nebula

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