Objective To evaluate the radiotherapy effects on nasopharyngeal carcinoma with low-melting-point lead irregular shield technique.
目的探讨低熔点铅不规则档块技术在鼻咽癌放疗中的临床价值。
2
A part surface can be infiltrated with a lowmeltingpoint metal to increase density, strength, hardness, ductility and impact resistance.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
3
Though the analyzing of the upper part of oil box and the designing of the structure of the die, the article discusses the characters and advantage of the lowmeltingpoint alloy die.