Mechanical seal
[化] 机械密封; 端面密封
🧩 词语组成解析
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
If there is any cinnamon,
要是有的话，
The girls all went crazy over him.
姑娘们都为他神魂颠倒。
He would invent fanciful names on the spot.
他会当场编造出一些稀奇古怪的货名。