我只是说着玩的。
The newest recommended practice from IEST is RP-CC-019 Qualifications for Organizations Engaged in the Testing and Certification for Cleanrooms and Clean-Air Devices.
环境科学技术学会（IEST）最新推荐的文件为RP-CC-019 对洁净室和洁净空气装置进行测试和检验的相关机构的资格。
The newest recommended practice from IEST is RP-CC-019 Qualifications for Organizations Engaged in the Testing and Certification for Cleanrooms and Clean-Air Devices.
环境科学技术学会（IEST）最新推荐的文件为RP-CC-019 对洁净室和洁净空气装置进行测试和检验的相关机构的资格。
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