Marstressing
马氏体应力; 马氏体应力淬火
🗣️ 情景例句
I work part time in the summer to pay for my tuition.
我夏天做兼职来支付学费。
What's the round-trip fare?
来回票价多少？
As is so often pointed out, knowledge is a two-edged weapon which can be used equally for good or evil.
正像人们常常指出的，知识是一把双刃刀，可以用于造福，也可以用来为害。