英文缩略词SV的扩展资料  The first time the service is invoked, the entry point is obviously initialized with a start value.  首次调用服务时,入口点由一个start值显式地初始化。  To get the actual data bytes per second, you would have to take two samples ( to get a start value and an end value ), and divide the difference by the duration between the samples.  要获得实际的每秒数据字节,您将必须接受两个样本(来获取初始值和结束值),然后根据样本之间的持续时间来进行区分。  In future the start value varies with the version.  以后版本不同,可能值不同。