Engineers are still trying to come up with a commercially viable replacement for internal-combustion engines.

工程师在设法制造一种在商业上切实可的发动来取代燃。

The diesels roared, the conductors jumped aboard, and off the train went.

燃发出轰鸣声, 列车员跳上车厢, 火车开走了。

Chapter Three gives design of machine of washing-system .researches drive, steel framework and executing-part, according to mechlorethamine design rule.

第三章结合电系统设计理燃车清洗的械系统究并完成了体结构、动力源、械执构三个方面的设计。

Besides, laser optoacoustic spectroscopy technique and laser mass spectrometry will play more important role in research of internal combustion engine.

另外，激光光声光谱技术、激光质谱仪等有望在燃的究中发挥更大的作用。

The tribophysics of the cylinder liner—piston rings in an internal combustion engine is a typical tribological system with the reciprocating motion and the impacting motion.

燃缸套——活塞环摩擦副系统是一个集往复、冲击于一体的典型的摩擦学系统。