“mast”的概念、定义、翻译、参考文献-科学参考

单词	mast
释义	mast [mast] ^ENGINEERING 1. A vertical metal pole serving as an antenna or antenna support. 2. A slender vertical pole which must be held in position by guy lines. 3. A drill, derrick, or tripod mounted on a drill unit, which can be raised to operating position by mechanical means. 4. A single pole, used as a drill derrick, supported in its upright or operating position by guys. ^{MECHANICAL ENGINEERING} A support member on certain industrial trucks, such as a forklift, that provides guideways for the vertical movement of the carriage. ^{NAVAL ARCHITECTURE} A long wooden or metal pole or spar, usually vertical, on the deck or keel of a ship, to support other spars which in turn support or are attached to sails, as well as derricks.
随便看	shoshonite shot shot bit shot blasting shot boring shot break shot capacity shot copper shotcreting shot depth shot drill shot effect shot elevation shot feed shot-firing cable shot-firing circuit shot-firing curtain shot group shotgun shotgun cartridge shothole shothole casing shothole drill shot noise shot pattern

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