Because the mold is formed around a one-piece pattern (which does not have to be pulled out from the mold as in a traditional sand casting process), very intricate parts and undercuts can be made.
由于这种铸型是环绕整块型模形成的(无需像传统的砂型铸造工艺那样拔模)，能制作十分复杂的零件和浮雕。
2
The gait and footprint distribution of a camel walking on sand, the regular changing pattern of motion parameters with the changing of walking speed and the slope Angle were studied.
研究了骆驼坡道行走的运动步法、足印分布，以及骆驼运动参数随速度、坡度的变化规律。
3
The dynamic pressure on pattern wall can reflect indirectly the compaction degree of sand during the course of filling and compaction of sand on EPC.