| 单词 | hydraulus |
| 释义 | hydraulus /huy draw"leuhs/, n. , pl. hydrauli /-luy/, hydrauluses. a pipe organ of ancient Greece and Rome using water pressure to maintain the air supply. [1870-75; < L < Gk hýdraulos water organ, equiv. to hydr- HYDR-1 + aulós pipe] |
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