| 单词 | well tube |
| 释义 | > as lemmaswell tube well tube n. (originally) a tube inserted into a well shaft, through which water or oil is extracted; (later) the inner casing in a driven well. ΘΚΠ the world > the earth > water > lake > pool > [noun] > well > shaft wellway1753 well tube1807 well-boring1822 well shaft1830 well hole1839 welling1865 1807 New Encycl. XXIII. Well-Tube, an hydraulic instrument for procuring water, in almost every situation. 1865 G. W. Gesner A. Gesner's Pract. Treat. Coal (ed. 2) ii. 34 An air-pump is used at some places to force a current of air through a tube carried to the bottom of the well tube, and in this way compel the oil and water to flow out without the use of pumping rods and valves. 1937 Jrnl. Amer. Water Wks. Assoc. 29 92 The space between the well tube proper and the outer casing is cemented after the gravel has been placed. 2012 Y. Bai & Q. Bai Subsea Engin. Handbk. xiv. 426 The model can accurately predict steady-state and transient heat transfer of the well tube and pipeline. < as lemmas |
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