Delta seal
[化] 三角密封
🧩 词语组成解析
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
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
Excuse me, Richard, Marilyn.
打扰一下 Richard Marilyn。
You should have your suit cleaned and ironed.
你应该把你的套装拿去洗烫一下。
international standards of water treatment are usually followed at bottling plants.
装瓶厂通常遵循国际水处理的标准。