My survival gear is made up of three objects: a neck knife with compass and spark rod, an orange bandana, and the main kit.
我的生存装备由三部分组成：一把和指南针以及打火棒系在一起的颈刀、一张橘红的大手帕和主要工具包。
My survival gear is made up of three objects : a neck knife with compass and spark rod, an orange bandana, and the main kit.
我的生存装备由三部分组成：一把和指南针以及打火棒系在一起的颈刀、一张橘红的大手帕和主要工具包。
In this paper the working principle of electro - spark surfacing is introduced. Surfacing process is applied to restoring hydraulic piston - rod and gains good effectiveness.
主要介绍了电火花沉积堆焊工作原理，应用沉积堆焊工艺修复液压活寒杆，取得了良好效果。
应用推荐