Perfection of deadliness weakness of protection function for model c tipple control system 型翻车机控制系统保护功能的致命弱点的完善
Power system protective relay applications of audio tones over voice grade channels 电话信道上可听音音调的电源系统保护继电器应用指南
Recommended practice for protection and coordination of industrial and commercial power systems 工业及商业电力系统保护及配合用推荐规程
Guide for power system protective relay applications of audio tones over telephone channels 电话信道上可听音电源系统保护继电器应用指南
The work theory of system protection is introduced in detail in the thesis 详细介绍了系统保护的工作原理，讨论了系统保护新原理的实现方案。
The data is thus duly segregated , and secured by a complex secret key system prohibiting unauthorised access 卡内的资料都是分隔储存，并由一套先进的密匙系统保护，严防非法使用。
The data is thus duly segregated , and secured by a complex secret key system prohibiting unauthorised access 卡内的资料都是分隔储存，并由一套先进的密匙系统保护，严防非法使用。
Describes how to protect your data against hardware failure by using the sql server backup and restore system 说明了如何通过sql server备份和还原系统保护数据免遭硬件故障的破坏。
Numbering of watches and clocks ; energy supply , winding mechanism , oscillating system , protective measures and additional functions 钟表的编号.电源发条机构摆振系统保护措施和附
