hollow-rod 中文意思是什麼
hollow-rod
解釋
空心桿-
Copper and copper alloys - hollow rod for free machining purposes
銅和銅合金.高速切削用中空棒材 -
Analytical solution for steam heating system of hollow sucker rod and optimal design of injection parameters
空心抽油桿注蒸汽數學模型的解析解及其參數優化 -
Specification for hollow sucker rod
空心抽油桿 -
The new unit adopts hollow sucker rod working with pump and as fluid passage instead of conventional sucker rod, and uses a new hanger to fix the one - piece barrel rod pump on the casing wall, improving the operation stability of the subsurface pump
針對這種情況,大港油田新世紀機械製造有限公司研製成功一種新型無油管採油裝置,這種裝置以空心抽油桿代替實心抽油桿帶泵工作併兼作出油流道,還通過一種新型懸掛器將整筒抽油泵固定在套管壁上,提高了抽油泵的工作穩定性。 -
Hollow dial holding rod. dimensions
空心表桿.尺寸
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