argon shield

• 氩气保护

argon shield的用法和样例：

例句

1. This paper will discuss especially on the structure and working principle of continuous unidirectional solidification equipment under conditions of vacuum melting and argon shield.
   本文将着重介绍真空熔化氩气保护连续定向凝固设备的结构特点及工作原理。