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ASTM E2904-2017 相控阵探头特性描述与检验规程 Standard Practice for Characterization and Verification of Phas...2023-05-04

GB/T 1844.1-2022塑料符号和缩略语第1部分：基础聚合物及其特征性能Plastics-Symbols and abbreviated terms- Part ...2023-04-23

GB/T 41007-2021消费品安全化学危害表征和暴露评估指南Consumer product safety—Guidelines for characterization...2022-10-24

GB/T 41316-2022分散体系稳定性表征指导原则Guidelines for the characterization of dispersion stability...2022-10-26