| 单词 | sand-pump |
| 释义 | > as lemmassand-pump sand-pump n. a pump for raising wet sand, detritus, etc., from a drill-hole, oil-well, caisson, etc.; also attributive. ΘΚΠ society > occupation and work > equipment > pump > [noun] > other types of pump bottom lift1778 rose pump1778 centrifugal pump1789 jack-heada1792 jet pump1850 sand-pump1865 Union pump1867 shell-pump1875 eductor1877 brake-pump1881 bull-pump1881 cam-pumpa1884 sand-reel1883 grasshopper1884 knapsack pump1894 knapsack sprayer1897 turbo-pump1903 Sylphon1906 slush pump1913 displacement pump1924 power pack1937 proportioner1945 solids pump1957 peristaltic pump1958 powerhead1981 Cornish pump- 1865 Harper's Mag. Apr. 573/2 A sand-pump is a metal case from five to ten feet in length, constructed with a valve at the bottom. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 172 Sand-pump, a cylinder with a valve at the bottom, lowered into a drill-hole from time to time, to take out the accumulated slime resulting from the action of the drill on the rock. 1902 Encycl. Brit. XXVII. 530/2 Sand-pump dredgers. < as lemmas |
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