Macrofractography
断口低倍检验, 断口宏观检验
🗣️ 情景例句
I am calling on behalf of the Private Teacher Company.
我代表家教公司给您打电话。
He was lucky to have a good home in which to grow up.
他幸运地生长在良好的家庭里。
We are on the left.
我们在河的左侧。