![]() Metallic materials - Sheet and strip - Determination of plastic strain ratio 金属材料 薄板和薄带塑性应变比(r值)的测定 |
![]() Method for determination of 475 pesticides and related chemicals residues in grains - GC-MS method 粮谷中475种农药及相关化学品残留量的测定 气相色谱-质谱法 |
![]() Information technology - Abstract Syntax Notation One (ASN.1) - Part 3: Constraint specification 信息技术 抽象语法记法一(ASN.1) 第3部分:约束规范 |
![]() Laboratory animal--Method for examination of rat parvovirus(KRV and H-1 strain) 实验动物 大鼠细小病毒(KRV和H-1株)检测方法 |
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