两种办法都是在联线服务组之前，校验以确保这个服务组的IP地址没有被其他系统使用。
Both methods check to make sure the IP addresses for this service group are not being used by another system before onlining the service group.
服务组心跳-磁盘心跳将在服务组联线前被校验。
Service Group Heartbeats - Disk heartbeats that are checked before a service group is brought online.
IP校验-这种方法无论在preonline-ipc时间连锁反应中，或是在简单地令一个IP资源成为服务组中首要联线的资源都适用。
IP Checking - This method is used in either the preonline-ipc event trigger, or simply make an IP resource the first resource to online in the service group.
使用这些值创建两个DES加密密钥，并为每一组添加一个奇偶校验位，这样即可创建出64位的密钥。
These values are used to create two DES encryption keys, one from each half with a parity bit added to each to create 64 bit keys.
奇偶校验：加于一组二进制数字内的一个校验数元。它跟据系统逻辑，使总数为奇数或偶数。
Parity bit: a check bit added to a series of binary digits to make the total odd or even according to the logic of the system.
根据被传输的一组二进制代码的数位中“1”的个数是奇数或偶数来进行校验。
Be transmitted according to a set of binary digital code of "1" bits is odd or even to verify.
运行多年的300 MW火力机组，其发变组保护设备落后、老化、校验复杂、保护灵敏度低。
After more than 10 years of operation, the generator-transformer protection of the 300 MW thermoelectric units became technologically behind, aging, too complicated in checking, and less sensitive.
运行多年的300 MW火力机组，其发变组保护设备落后、老化、校验复杂、保护灵敏度低。
After more than 10 years of operation, the generator-transformer protection of the 300 MW thermoelectric units became technologically behind, aging, too complicated in checking, and less sensitive.
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