Differential valve
[化] 差動閥
?? 詞語組成解析
differential
['d?f?'r?n??l]
adj. 差別的;特意的;[數]微分的;[機，物]差動的;
n. [數]微分;差別;工資級差;[機]差動器;
di, dif, divid 表示”分開”;”取消”,”否定”;”不同”
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調節;
??? 情景例句
How was your school-board meeting last night?
昨天晚上你們的聯合校董會會議開得怎么樣？
Ladies and gentlemen, I appreciate your...vote.
各位先生，女士，懇請賞賜一票。
Which glasses?
哪幾只？