| 单词 | draft tube |
| 释义 | > as lemmasdraft tube draft tube n. [draught n. 23] ΚΠ 1876 Jrnl. Franklin Inst. 101 285 A turbine provided with this draft tube can be placed between both levels that constitute the fall, and produce the same result as if the turbine were placed at the bottom of the fall. < as lemmas |
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