Elbow: Also called the "junction"; a term often used to indicate the area of the court where the free-throw line and side of the key meet.
指球场的一部分，在自由投球线和边界之间的地域。
2
At the junction of a branch line and the trunk line, the wires must be spliced together.
在支线和中继线的接合点，电线必须被叠接起来。
3
By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).