| 单词 | water back |
| 释义 | > as lemmaswater back water back n. [ < water n. + back n.2] now rare a tank or cistern for holding water; spec. = back-boiler n. at back- comb. form 2. ΚΠ 1803 Trans. Soc. Arts 21 207 A water back or cistern above the boiler. 1875 E. H. Knight Pract. Dict. Mech. Water-back, a permanent reservoir at the back of a stove or range, to utilize the heat of the fire in keeping a supply of hot water. 1890 H. I. Blits Methods Canning Fruits & Veg. 110 If there is a water-back attached to the stove, see that it is filled with water. 1925 U.S. Dept. Agric. Farmers' Bull. No. 1460. 11 The hot-water flow pipe close to a water back or coil frequently becomes thickly covered with scale. < as lemmas |
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