Oil Industry. A device in the form of a plunger with a valve, used to raise fluid in a well and induce a flow.
单词 | θ213362 |
释义 | society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > plunger to induce flow (1) swab1904 Oil Industry. A device in the form of a plunger with a valve, used to raise fluid in a well and induce a flow. |
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