BLL Site safety or area manager: sign off the permit if result of checking meets the requirements.
Abstract: Type190 Ballistics Longitude-Latitude Photographic Plate( BLL photoplate) is dedicated for night photography of luminous ballistics of this domestic BLL photoplate and summarized a series of measures for solving these problens.
Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.
Contractor safety: on the day of the tasks, ask BLL Site safety to check the task area for equipment and safety measures conformance.
BLL现场安全员或分区负责人：若检查结果符合需要制定，即可签发许可*。
要使用新的BLL类，我们所需要做的仅仅是简单的修改一下第一行代码。
承包商安全员：在工作开展的当天，向BLL的现场安全员询问检查工作开展区域的设备存放地点和安全施工方案。
