Backing weld(ing)
[化] 打底焊
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
Wait! Don't hang up!
等等， 别挂断电话！
How awful.
多可怕呀！
These objects, however, were different.
这些展品却使人大开眼界。