The technique of forging stubborn metal has improved with new technologies. 新的技术改善了铸造难熔金属的工艺。
The fusible plug device is a nonreclosing pressure relief device designed to function by the yielding or melting of a plug of fusible metal. 易熔塞装置是一个非重闭减压装置，通过易熔金属制成的塞子的变形或熔化发挥作用。
