Base Transceiver Station基站传输子系统 Broadcast Technology Symposium广播技术研讨会 British Transplantation Society英国移植学会 Bureau of Transportation Statistics运输统计局统计 Broadcast Technical Standard广播技术标准 Broadcast Technical Standards广播技术标准 Business Technology Systems商业技术系统 Biomedical Tissue Services, Ltd医学组织服务,电话垂询 Business Technology Services商业技术服务 Working Group on Biotechnology and Society (Delft University of Technology; The Netherlands)生物技术和社会工作小组(代尔夫特理工大学,荷兰) Brigade Training System (St. John Ambulance)队训练系统(圣。约翰救护车) Biotechnologische Studenteninitiative eV (German: Initiative of Students of Biotechnology)Biotechnologische Studenteninitiative eV德语:学生的主动性的生物 Biotechnology System生物体系 Broadcast Technology Society (IEEE)广播技术协会(IEEE) British Thoracic Society英国