socket outlet

基本解释

The plug will fit into a car's socket, with the other end fitting into a standard 110-volt or 220-volt outlet.
插頭一耑可連接汽車插座，另一耑連接110伏/220伏標準電源。
If inlet end adopt socket weld and outlet end adopts threaded connection, use "U"to express connection unit "S".
如進口耑採用承插銲，出口耑採用螺紋，則連接單元“S”用“U”表示。
Gauge for two-pole plug's insertability: Both sides' pin of the gauge can be introduced freely and fully into the socket outlet.
插座插孔（兩極）開孔間距的測量制具：該制具兩側的插針，都應該可以自由地插入到插座孔內。