Marstressing
馬氏體應力; 馬氏體應力淬火
??? 情景例句
All we have to do now is shake hands.
現在我們所該做的只是握手了。
I asked him to do it for me, but he wouldn't.
我請他幫我做，但是他不肯。
It weighed nearly 500 pounds.
重達500磅左右。