selective acknowledgment meaning in Chinese

有选择的确认

Enables forward acknowledgment , which operates with selective acknowledgment sack to reduce congestion ; should be enabled
启用转发应答（ forward acknowledgment ），这可以进行有选择应答（ sack ）从而减少拥塞情况的发生；这个选项也应该启用。
Enables selective acknowledgment , which improves performance by selectively acknowledging packets received out of order causing the sender to retransmit only the missing segments ; should be enabled for wide area network communication , but it can increase cpu utilization
启用有选择的应答（ selective acknowledgment ），这可以通过有选择地应答乱序接收到的报文来提高性能（这样可以让发送者只发送丢失的报文段）；（对于广域网通信来说）这个选项应该启用，但是这会增加对cpu的占用。