还是译为“等待时间”比较好
我坚持认为译为“等待时间”比较好。（以下解释供参考）
The time interval between the instant at which an instruction control unit initiates a call for data and the instant at which the actual transfer of the data is started.
指令控制器开始调用数据和实际开始传送数据之间的时间间隔。
A delay between the instant a request is made for a record and the instant the transfer starts.
从请求某一记录到传送该记录开始间的时间延迟。
The time spent waiting for the desired location to appear under the reader, or disk heads, or at the end of an acoustic coupler.
等待所需位置出现在阅读器下或磁头下或声音耦合器末端所花费的时间长度。