n. 炮耳, 枢轴, 耳轴
[化] 枢轴
n. A cylindrical projection on each side of a piece, whether
gun, mortar, or howitzer, serving to support it on the cheeks of the
carriage. See Illust. of Cannon.
n. A gudgeon on each side of an oscillating steam cylinder,
to support it. It is usually tubular, to convey steam.
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