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单词
beam-balanced pump
释义
beam-balanced pump
beam-balanced pump
[
′bēm ‚bal·ənst ′pəmp
]
(petroleum engineering)
An oil well pumping unit having a center-pivoted beam with the sucker rod plunger (pump) at the front end and a counterweight on the rearward extension.
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更新时间:2026/2/8 16:53:32