Backstep welding
[化] 分段退焊
🧩 词语组成解析
后退
a. 焊的\\n[机] 熔接, 焊接, 锻接
🗣️ 情景例句
Here are our catalogues, brochures, price lists.
这儿有目录、小册子、价格表。
Would you take this coat to the cleaner's?
你可以把这件外套送到洗衣店吗？
The plane was late and detectives were waiting at the airport all morning.
飞机误点了，侦探们在机场等了整整一上午。