The convenient socket is composed of a socket and a rotary mechanism, wherein a rotaryring mechanism is penetrated through a socket panel and is arranged on a base of the socket;
该方便插座由插座、旋转机 构组成,转环机构穿过插座面板,安装在插座的底座上。
2
The method of weakening centrifugal force in the rotaryring flume is proposed and sediment movement under the effect of periodic reciprocating current is tested in the ring flume.