| 单词 | serving main |
| 释义 | > as lemmasserving main serving main n. rare a pipe or duct which supplies a device with water. ΚΠ 1813 ‘T. Martin’ Circle Mech. Arts 495/2 The Forcing-pump consists of a working-barrel, a suction-pipe and serving-main, or raising-pipe. 1973 Decisions Public Utilities Comm. Calif. 75 87 The staff recommended a change in the tariff for public fire hydrant service, relating the tariff to the size of the serving main. < as lemmas |
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