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步进式空腔泵
 步进式空腔泵
mech. progressive cavity pump
| 最优化
 最优化
auto. optimise
bridg.constr. optimisation
space optimization
tech. optimizing; optimum
telecom. optimize
| 系统
 DPA系统
pest.contr. DPA System
 F系统
rem.sens. F system

to phrases
步进式空腔泵
mech. progressive cavity pump
步进式空腔泵: 3 phrases in 1 subject
Mechanics3