Pressure boundary material - metallurgy of the castings and components.
压力界面材料：铸件和部件材料。
Mantle material can sink at a plate boundary, and then flow back upward farther away, pushing on the crust - a process called small scale convection.
地幔，这种物质可以在板块边界处下沉，然后向上回流到较远的地方，再与地壳相碰撞——这个过程被称为小规模的对流。
The boundary between the wet asphalt and metal material is very fragile.
在湿沥青和金属材料之间的边界是非常单薄的。
应用推荐