Wear on the dynamic lip is egg-shaped. The rod and the piston bore are not concentric.

消耗在一个象蛋形状的唇上。活塞杆和活塞腔不同心。

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As the piston strokes in its bore, the crankshaft rotates, pressurizing the opposite bore reverses rotation.

正如在其孔活塞杆，曲轴旋转，加压相反的孔反转旋转。

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Reciprocating pumps convert rotary motion to linear motion. Pump speed in RPM determines the pumps output volume for any given combination of cylinder bore and piston stroke.

循环泵将曲轴旋转运动转化为柱塞的直线运动。泵速转每分钟决定了任何气缸和活塞组合的排泵量。

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With a deafening mechanical whine, the Instron's piston bore down on the metal leg inside the boot, mimicking the effect of a skier falling backward, the move that has ruptured thousands of knee ligaments.

FORBES: Magazine Article

With a deafening mechanical whine, the Instron's piston bore down on the metal leg inside the boot, mimicking the effect of a skier falling backward, a move that has ruptured thousands of knee ligaments.

FORBES: Magazine Article