Witnessed versus unwitnessed certification testing的意思|示意

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见证与未见证的认证测试

Witnessed versus unwitnessed certification testing的网络常见释义

目击与非目击认证测试 ... 系列概念与型式认证 Family concept versus type approval 目击与非目击认证测试 Witnessed versus unwitnessed certification testing 退化因素 Deterioration factor ...