| 单词 | union pump |
| 释义 | > as lemmasUnion pump Union pump n. now rare a pump combined with a source of power.Union is a proprietary name for pumps. 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- 1867 Amer. Artisan 4 Dec. 340/3 The cut accompanying this article represents the ‘Union’ pump, and is their latest improvement, and considered by them to be the ne plus ultra of pumps. 1931 Jrnl. Amer. Water Wks. Assoc. 23 375 Samples of water were taken from each of the electric wells and from the Union pump. < as lemmas |
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