翻译如下：
2-3 does not introduce excessive errors.
2-3 不必介绍过多的误差.
(c) The 'dual combustion' or composite cycle (Figure 1.7c)
(c) 双燃循环或复合循环（图1.7c）
This represents a combination of the constant pressure and constant volume cycles and is intended to provide a closer approximation to actual diesel cycles than either of the above ideal cycles.It is particularly appropriate where comparisons are to be made with actual diesel cycles on the basis of the maximum cylinder pressure max obtained during the heat release period,i.e.for engines operating in the mid-to full load range.
这代表着一种恒定压力和等容循环的结合,打算用来提供一个比以上任何理想循环更接近现实柴油机循环的数值.它特别适用于做比较的地方,在热释放期根据获得的最大汽缸压力与现实柴油机循环做比较,比如：在中等负荷范围内运转的发动机.