“spool”的概念、定义、翻译、参考文献-科学参考

单词	spool
释义	spool [spül] ^{GRAPHIC ARTS} A flanged cylinder in a camera on which unprocessed roll film is wound. ^{MECHANICAL ENGINEERING} 1. The drum of a hoist. 2. The movable part of a slide-type hydraulic valve. ^TEXTILES A cylinder made of wood or other material on which yarn is held during spinning or weaving.
随便看	double-bevel groove weld double-blind sample double-blind technique double block and bleed system double-block brake double blossom double board double bond double-bond isomerism double-bond shift double bottom double-bottom cellular double-bounce calibration double-break switch double bridge double brilliant double-buffered data transfer double bus-double breaker double bus-single breaker double-button microphone firing azimuth firing base firing box firing button firing cable

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