| 单词 | return flue |
| 释义 | > as lemmasreturn flue return flue n. ΚΠ 1806 B. M'Mahon Amer. Gardener's Cal. 87 If there is no return flue to be in front, which is not necessary in a house of moderate dimensions, let this flue be carried so that the covering tiles and plaister may be within three inches of the level of the front and end walls. 1888 Lockwood's Dict. Mech. Engin. Return Flues, the flues of Cornish, Lancashire, and Wagon boilers. 1938 Pop. Mech. Aug. 137A/1 The return flue boiler, favored by many early designers, was revived in improved form several years ago. < as lemmas |
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