Heliarc welding
[化] 氦弧焊
🧩 词语组成解析
氦弧
a. 焊的\\n[机] 熔接, 焊接, 锻接
🗣️ 情景例句
I just called to tell you
我打电话是想告诉你
This is a chair.
这是一张椅子。
How's your English coming along?
你英语学得怎样了？