Maraging
马氏体时效处理; 高强度热处理
🗣️ 情景例句
and the problem is that it's set up primarily for kids to play.
而问题是它主要是让孩子们去玩的。
Someone is working in the manhole.
有人在
She usually wears that round her middle when she goes out.
她外出时总是把它系在腰上。