The paper analyses about reserve protection's problem of relay protection, it must perfect reserveprotection, only in this way, to assure electric wire netting and equipment's safe.
文章分析了有关继电保护后备保护的问题，认为必须完善后备保护，只有这样，才能保证电网和设备的安全。
2
The Federal Reserve put its balance sheet in harm's way to give assurance to Bear Stearns's creditors and extended that protection to the other primary dealers.
Dalinor, perched in Chifeng City of the Inner Mongolia Autonomous Region, is an important wetland ecosystem in Asia and a state-level nature reserve designated for the protection of rare species.