metal injection molding短语¹⁴⁴⁹⁷²⁺² 基本例句 金属注射成形 The influences of the content of PW and LDPE, the powder loading amount as well as the degreasing method on the shape holding in metal injection molding are investigated. 研究了石蜡 PW和低密度聚乙烯 LDPE的含量、粉末装载量和脱脂方法对脱脂保形性的影响。 cnki