单词	Crookes tube
释义	Crookes tube noun : a vacuum tube evacuated to a pressure of about .04 mm of mercury for demonstrating the properties of cathode rays Word History Etymology after Sir Wm. Crookes
随便看	chervonets chervonetz chervontsi chervontzi Cherwell ches ches cake Chesapeake Chesapeake and Delaware Canal Chesapeake Bay Chesapeake Bay Bridge-Tunnel Chesapeake Bay retriever Chesapeake canoe Cheshire Cheshire cat Cheshire cheese cheshires Cheshvan chesils chesnut chess chess pie chess rook chessboard chessboards

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