The tapered or open end is threaded to receive a cylinder valve or other suitable outletconnection.
钢瓶顶部是锥形的，最上端有个小开口。
2
One of the most confusing issues concerning outlet connections is how much force one should apply to achieve a seal without damaging the connection.
应该用多大的力来完成密封而又不损坏接头，这是关于排气口接头的最混乱的问题之一。
3
During maintenance, it is not permitted to change the original position between the inlet and outlet on the common rail pipe and connection from pipe and pump at random.