Bobbin seal
[化] 套管密封
?? 詞語(yǔ)組成解析
bobbin
[['bobin]]
n. 線(xiàn)軸, 纏線(xiàn)板, 纏線(xiàn)管\\n[電] 卷線(xiàn)軸
seal
[sil]
n. 密封;印章;海豹;封條;
v. 密封;蓋章;決定;封上（信封）;
??? 情景例句
I would like a single room.
我想要一個(gè)單人間。
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大約4點(diǎn)鐘正在做什么？
Who is he?
他是誰(shuí)？