Seal by sleeve
[化] 套管密封
🧩 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）;
by
[baɪ]
prep. 在…旁边;表示方式;由于;经过;
adv. 经过;表示保留或保存时用;短暂拜访;
sleeve
[sliv]
n. [机]套筒，套管;袖子，袖套;唱片套;
vt. 给…装袖子;给…装套筒;
🗣️ 情景例句
Experienced, talented, retired.
有经验， 有才能， 退休了。
How much is this meat per pound?
每磅肉要多少钱？
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：