standing barrel rod pump 固定泵筒杆式泵
polished-barrel rod 抛光圆棒
core barrel rod 导向钻杆
stationary barrel rod pump 定筒杆式泵
core-barrel rod [矿业] 岩心管导杆
traveling barrel rod pump 动筒杆式泵
travelling barrel rod pump 游动泵筒杆式泵
rod travelling barrel pump 泵筒游动的杆式泵
barrel buffer piston rod assembly 枪管缓冲器活塞杆组件
CYBS series anti sand travelling barrel rod pumps were used on 4 Wells in Wennan Oilfield to test their performance of sand control and slush pumping.
采用CYBS系列动筒式防砂卡抽油泵，在文南油田不同井况的4口井中进行了防砂卡抽泥浆工艺的生产试验。
The utility model is composed of a handle, a pull rod, a barrel body, a piston, a bottom plate, an oil inlet valve, an oil outlet valve, etc.
本实用新型由手柄、拉杆、筒体、活塞、底板、进油阀、出油阀、等部件所构成。
It is investigated that the influence of barrel temperature and rotation speed of screw rod of extruder on conductivity and strength of the ABS resin composites filled with carbon fibers.
研究了单螺杆挤出机挤出温度及螺杆转速对沥青炭纤维填充abs树脂复合材料导电性及力学性能的影响。
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