- single stroke
- 單: singular number fate; destin ...
- 沖程: travel; stroke; 4
- 單沖程深井泵: single stroke deep well pump; single-stroke deepwell pump
- 單循環(huán)；單沖程；單旋回: single cycle
- 沖程: [機(jī)械工程] travel; (length of) stroke: 4 沖程發(fā)動(dòng)機(jī) four-stroke engine
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