往复式发动机

The principal type is the reciprocating -piston engine.

主要的类型是往复式活塞发动机。

The most familiar combinationis the reciprocating,spark-ignited,gasoline engine,shown in Fig.1-1a.

最熟悉的组合是图1－1a中所示的往复式、火花点火的汽油发动机。

A quantity of especial interest in connection with reciprocating engines is the work done on the piston divided by displacement volume.

所以与往复式发动机有关的一个具有特殊意义的量就是作用于活塞上的功除以排量(V1-V2)。

A quantity of especial interest in connection with reciprocating engines is the work done on the piston divided by displacement volume.

所以与往复式发动机有关地一个具有特殊意义地量就是作用于活塞上地功除以排量(V1-V2)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。