Carrierprotection has been playing a very important role in normal operation of HV transmission line. It can cut-off the fault quickly to ensure the system operating stably.
高频保护对于高压线路的正常运行起着极其重要的作用，它可以快速切除故障，保障系统的稳定。
2
Literature carrier is condensation of knowledge culture and information in information age, its protection and utilization is of vital importance.
文献载体是信息时代知识文化和知识信息的凝结形态，它的保护和利用至关重要。
3
Chinese oil and gas pipeline in Gansu Province as an important carrier, attaches great importance to pipeline safety, and Gansu Province to join hands to carry out several pipeline protection.