单词 | h-piece |
释义 | > as lemmasH-piece H-piece n. (in a force-pump) a piece standing on the wind-bore under the door-piece, by which the water is forced through the door-piece into the standpipe. Π 1874 J. H. Collins Princ. Metal Mining (1875) Index 147 H-piece. < as lemmas |
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