Backstep welding
[化] 分段退焊
?? 詞語(yǔ)組成解析
后退
a. 焊的\\n[機(jī)] 熔接, 焊接, 鍛接
??? 情景例句
Anything else?
還有別的事嗎？
How did you break your leg?
你怎么弄斷了腿？
'The shop was an old converted house with many large, disused fireplaces and tall, narrow chimneys.
”那是一座老式的、經(jīng)過(guò)改造的房子，店里有許多廢置不用的大壁爐和又高又窄的煙囪。