That's why we Chinese talk with each other in Mandrin.
这也是中国人用普通话来相互交流的原因。
The invention comprises a handle and a drill bit, wherein the drill bit takes the structure of a trocar and consists of two parts of a sleeve and a mandrin;
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
The invention comprises a handle and a drill bit, wherein the drill bit takes the structure of a trocar and consists of two parts of a sleeve and a mandrin;
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
应用推荐