日本三级无码啪啪区|午夜视频久久一区久久一|AAAAA一级黄片|日本久久99久久|国际精品AV在线|狠狠2015亚洲一区|美腿丝袜亚洲网站|欧美色多多人人看|国产超碰美女在线|www色色在线色

單詞乎

valve

音標(biāo)[v?lv]
valve是什么意思、valve怎么讀

valve漢語翻譯

n. 活瓣, 閥, 活門
vt. 裝閥, 用閥調(diào)節(jié)
vi. 裝閥, 用閥調(diào)節(jié)
【化】 閥
【醫(yī)】 瓣, 瓣膜; 閥, 活門

valve詞型變化

形容詞:valveless 動詞過去式:valved 過去分詞:valved 現(xiàn)在分詞:valving 第三人稱單數(shù):valves 

valve英語解釋

名詞 valve:

  1. a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
  2. device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
  3. control consisting of a mechanical device for controlling the flow of a fluid

valve例句

  1. Composed of a single valve or piece. Used of a shell.
    單瓣的由單個(gè)瓣膜或部分組成的。用于殼
  2. The pump sucks air out (of the vessel) through this valve.
    這臺泵通過這個(gè)閥門把(容器中的)空氣抽出。
  3. We need an eye bolt to fit this valve.
    我們需要一個(gè)有眼螺栓來固定這個(gè)閥門。
  4. Have you turned off the water valve?
    你關(guān)掉水閥了嗎？
0
糾錯