Radiant wall burner
[化] 侧壁燃烧器
🧩 词语组成解析
🗣️ 情景例句
I'd like to be your friend, too.
我也想成为你的朋友。
Steel ball
钢珠
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。