开关: Q-switching来回: make a round trip; make a re ...开关,切换: sw switch; toggle切换开关: diverter switch; selector switch; sw switch按序切换开关: commutator switch抽头切换开关: tap changer; tap-changing switch; tapchanger手动切换开关: manual transfer switch天线切换开关: antsw运行切换开关: operation commutation switch自动切换开关: automatic changeover switch; automatic transfer switch赤经方向切换开关: r.a. mode赤纬方向切换开关: dec. mode带荷自动切换开关: automatic on-load tap-changer分接头切换开关: tap-changing switch高速抽头切换开关: high-speed tap changer气动储罐切换开关: pneumatic tank switcher气动储灌切换开关: pneumatic tank switch视音频切换开关: av switcher手动-切换-自动选择开关: manual-off-automatic selector switch小区内切换开关: iho自动跑步切换开关: auto run来回: 1.(往复一次) make a round trip; make a return journey; go to a place and come back 打来回儿 make a round trip; 从我家到学校来回要走半小时。 it takes half an hour to go on foot from my home to my school and back.2.(往复多次) back and forth; to and fro 来回摇摆 oscillate; vacillate; 他在游泳池里游了五个来回。 he swam back and forth five times up and down the swimming pool.3.(周期; 循环) cycle; 来回飞行 round-trip flight; 来回票 return ticket; round-trip ticket常规开关切换管理协议: gsm general switching management protocol当地一远方切换开关: local-remote switch当前图上重画的切换开关: hold