Note that the compression ratios shown above reflect the expansion ratio, which is the ratio of the combustion chamber volumes when the piston is at Bottom deadcentre and Topdeadcentre.
请注意，压缩比上述反映膨胀率，这是燃烧室的量的比例时，活塞的下死顶死中心，中心会显示。
2
The first sensor monitors the camshaft position delivering one pulse per revolution which corresponds to the top-dead-centre (TDC) position of one of the pistons.
第一个传感器用来监视每次旋转时释放一次脉冲的机轴位置，该位置相当于某一活塞上止点的位置。
3
Subsequently the charging shaft must be latched to topdeadcentre with the charged closing spring (Fig. 15).