a factor in determining the heartbeat of current research into combustion instability phenomena is the status of engine development program . 研究燃料不穩(wěn)定性的規(guī)模,完全取決于發(fā)動(dòng)機(jī)研制計(jì)劃的狀況。
495q methanol engine development and research 發(fā)動(dòng)機(jī)開發(fā)與研究
this also is an aspect of promotion game engine development 這也是促進(jìn)游戲引擎發(fā)展的一個(gè)方面。
ny 190 diesel engine development 190柴油機(jī)研究開發(fā)
study on the estimation of the engine development cost based on the gray combined model 基于灰色組合模型的發(fā)動(dòng)機(jī)研制費(fèi)用估算研究