Welding flux backing
[化] 焊剂垫
🧩 词语组成解析
a. 焊的\\n[机] 熔接, 焊接, 锻接
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
We were all sorry when we heard that your brother had had an accident.
我对你弟弟的意外感到遗憾。
He has not come in yet.
他还没有来。
Have you taken his temperature?
你给他量过体温吗？