"some campsites have electrical hookups for trailers"
这是电视机插线.
Side - by - side construction for easy hookup of left and right channels.并排的双线非常便于左右声道的识别和连接.
Ideal for use with client's existing hydrant meter hookup.特别适用于用户现有的消防栓仪表连接.
Astronauts did some wiry and hookup TV cameras outside the station.宇航员维修了空间站外面一些连接电视摄像头的电线.
Stabilization of the test hookup.使测试夹具稳定.