plunger stroke meaning in Chinese

柱塞冲程
柱塞行程

The main achievements are as follows : 1 it ' s for the first time to extensively investigate effects of main combustion system parameters such as plunger diameter , plunger stroke , fuel delivery advanced angle , valve opening pressure of nozzle on performance of dme engine . the parameters are optimized
取得的主要成果有： 1系统地研究了油泵柱塞直径和行程、供油提前角、喷嘴启喷压力等发动机燃烧系统主要参数对二甲醚发动机性能的影响，优化了这些参数。