| 单词 | reciprocating engine |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔crankcase〕The metal case enclosing the crankshaft and associated parts in a reciprocating engine.曲柄轴箱：在往复式发动机内将曲柄轴和相关部件包住的金属箱子美国传统〔crosshead〕A beam that connects the piston rod to the connecting rod of a reciprocating engine.十字头：连接活塞杆和往复式发动机连杆的横杆美国传统〔cylinder〕The chamber in which a piston of a reciprocating engine moves.汽缸：有往复式发动机的活塞移动的空室美国传统 |
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