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progressive cavity pump production
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progressive cavity pump production
Encyclopedia
工学
螺杆泵采油法
释
progressive cavity pump production
螺杆泵采油法
由螺杆泵、抽油杆柱、抽油杆扶正器及地面驱动系统等组成的无杆抽油装置进行采油的方法。
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viewfinder eyepiece, finder eyepiece
viewfinder, finder
viewfinder objective lens
viewfinder parallax
view free market,the open marketplace of ideas
View From the Window at Le Gras
viewing
viewing angle
viewing angle magnification
viewing distance
viewing fee
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viewing field, field of view
viewing filter
Viewing Fish at Flower Pond
viewing pyramid
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viewing storage tube
viewing transformation
view interpolation
view materialization
view of agricultural system
view of appropriateness of climate soil and crops
view of appropriateness of climate, soil and crops
View of Four Seasons by Liu Songnian
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