- 专用: special use; for a special p ...
- 泵: pump
- 通用泵,常用泵: general service pum( or g.s. pump)
- 备用泵: appendage pump; backer pump; before and after pump; emergency pump; jury pump; reserv pump; reserve pumps; reserved pump; service pump; spare pump; stand by pump; tand-by pump
- 常用泵: general service pum
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