To ensure reliable communication to take place over a network, data to be sent must be put in manageable traceable packages.
为了保证在网络中进行可靠的通信，要传送的数据必须被装进易管理的、可追踪的分组中。
This means they are traceable through the system, and at any given time we can ascertain where a bike is or which docking point it was most recently removed from.
这意味着整个系统都是可追踪的，这让我们有充足的时间来确定那个地点或者那个存车处的自行车最近被取走了。