mutual interaction; the activity of reciprocating or exchanging (especially information)
例句
用作名词(n.)
But in the higher control of mind and development of intellectual and spiritual reciprocation, you are somewhat inferior.但是更高的心智控制和智力的发展以及灵性互换，你们稍微有些差强人意。
The start and stop of the machine are carried out by a multiple-disk clutch and the reciprocation of the ram is achieved by a crank connecting link.本机床的启动与停止用一多片式离合器控制，滑枕的往复运动通过曲柄连杆机构实现。
