这项“替代通信系统”计划极大推动了ARC - 201无线电的销售份额。
"This" Alternative Communications "program is driving the lion's share of ARC-201 radio buys."
问题在于如果服务提供者在使用一些替代协议，或者其位于某个服务消费者无法到达的位置，就会产生通信问题。
The problem is that if the Service provider is using some alternate protocol or is in some location that the Service consumer can't reach, we'll have a communications problem.
upstart是一个基于事件的init的替代程序，这意味着服务的启动和停止都基于事件的通信。
Upstart is an event-based init replacement, which means that the starting and stopping of services is based on the communication of events.
应用推荐