In the front face of the flywheel, there is a shallow indentation used to determine the position of the piston in the first cylinder.

在飞轮前端面有一浅凹口，其用来确定第一个气缸中活塞的位置。

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The results of calculating and experimenting show that the first and largest slap of impact between the piston and the liner occurs around the top dead center from the nonthrust to the thrust face.

经计算和实验表明：活塞在上止点附近，当活塞由非推力面快速地移向推力面时，对缸套具有较大的冲击能量。

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The piston portion (102) further includes a substantially annular insert chamber (126) formed in the mating face (105) and adapted for receiving a portion of a substantially annular insert (120).

该活塞部分（102）还包括形成于该配合面（105）中且适 于接纳基本上环形的嵌件（120）的一部分的基本上环形的嵌件腔室 （126）。

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For a liquid piston to work, its surface must be stable in the face of rapidly changing pressures.

ECONOMIST: An engine made of water