目的为了提高对健康人胸片的认识和积累资料。
Objective To improve the knowledge and accumulate data of chest films in healthy people.目的为了提高对健康人胸片的认识和积累资料。
In 2000, the interferometric gravitational wave detectors began their runs to accumulate data.2000年激光干涉仪引力波探测器已开始收集数据。