Valve ring
[化] 閥環(huán)
?? 詞語(yǔ)組成解析
valve
[v?lv]
n. 閥;真空管;（管樂(lè)器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調(diào)節(jié);
ring
[ri?]
n. 戒指，指環(huán);鈴聲，鐘聲;環(huán)形物;拳擊場(chǎng);
vt. 形成環(huán)狀;環(huán)繞;使（例如鈴）響;打電話給;
vi. 按鈴，敲鐘;回響;成環(huán)形;
??? 情景例句
He's always trying to pick up on me.
他總想調(diào)戲我。
All these articles are best selling lines.
所有這些產(chǎn)品都是我們的暢銷貨。
Professor Ronald Bracewell, a leading American radio astronomer,argued in Nature that such a superior civilization, on a visit to our own solar system,
假如有如此高級(jí)文明生命訪問(wèn)了我們的太陽(yáng)系，