prototype engine meaning in Chinese

样机
原型机

Two prototype engines , the pratt & whitney yf119 and general electric yf120 , also were developed and tested during the program
两个原型引擎,惠特尼yf119和通用电气yf120 ,还分别制定和测试期间的计划
The results show that the change of the components in the coal - bed gas will influence the combustion performance of the prototype engine
模拟仿真的结果表明：煤层气中甲烷浓度的增加有利于提高发动机的整机性能。煤层气的组分变化对发动机的燃烧性能有较大影响。
Under this background , we successfully developed an engine fuelled with coal - bed gas and ignited by spark plug . the measurements for the prototype engine were thoroughly made , including the cylinder pressure , the rate of heat release , combustion duration , ignition delays , spark ignition angle , and the fluctuation of the cylinder maximum pressure
在此背景下，本文对经由s195柴油机改装得到的燃用变组分煤层气发动机进行了全面的测试和分析，包括缸内示功图、燃烧放热率、主燃期、点火提前角、火焰发展期以及最大压力循环波动等。