“roller conveyor”的概念、定义、翻译、参考文献-科学参考

单词	roller conveyor
释义	roller conveyor [`rō·lǝr kǝn´vā·ǝr] ^{MECHANICAL ENGINEERING} A gravity conveyor having a track of parallel tubular rollers set at a definite grade, usually on antifriction bearings, at fixed locations, over which package goods which are sufficiently rigid to prevent sagging between rollers are moved by gravity or propulsion.
随便看	condenser ionization chamber condenser microphone condenser transducer condenser tubes condensing electrometer condensing engine condensing flow condensing gas drive condensing routine condition conditional conditional assembly conditional branch conditional breakpoint conditional convergence conditional distribution conditional expectation conditional expression conditional frequency conditional implication conditional instability conditional jump conditional lethal mutant conditionally compact set conditionally periodic motion

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