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
The sales record of My Heart Will Go On by Celin Dion has yet to be broken.
席林.迪翁的《我心永恒》创下了销售纪录暂时还无人可以打破。
The woolen sweaters you delivered do not match the sample we provided.
你们交货的羊毛衫和我厂提供的样品不一致。
Oh! Do you have to?
噢！必须收拾吗？