“hinge pin”可以造什么句，hinge pin造句
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The first toilet seat (3) is mounted to the hinge pin (6) at two points, one on each side of a point at which the second toilet seat (8) is mounted.
The rig tongs hinge pin, latch lock and springs must be inspected at regular intervals and changed out if excessive wear is encountered.
Hardfaced seating surfaces, large diameter hinge pins, and corrosion resistant bearing surfaces help lengthen operating life in tough surfaces.
