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综述·国外试验机产业结构变化的研究前言·············1··············……(2一3)日本试验机产业结构变化的研 究···························……(2一5)德国试验机产业结构变化的研 究···············
Review · Foreign test machine industry structure changes Preface ·················································································································································································································· 1 Research on structural changes ·········································· ······················