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
Please look us up.
请和我们联络。
I think you're mistaken about that.
我认为你关于那是错的。
That's right. I remember now.
对了。我现在想起来了。