本文对直列式多缸发动机气门调整方法进行了探讨，推荐一种新的方法。
This paper holds a discussion on methods of adjusting in line engine valves and recommends a new method for that.
对新的柴油机在气缸盖侧壁、中隔板、进排气道以及气门方面的改进进行了介绍。
The improvements of new diesel engines in terms of cylinder head side walls, middle walls, inlet and exhaust passages and valves were presented.
在一台五气门汽油机上实验证实这种新喷油方式能够节油17%左右，并明显改善排放性能。
Some experimented results gained in a 5-valve engine prove that this new injection mode can reduce fuel consumption by 17% than that of the conventional one, and improve exhaust emission performance.
报道中气门螨3新记录和3已知种雄螨后若螨描述。
The present paper reports 3 new records of mesostigmatic mites and descriptions of males and deutonymph of 3 known species.
报道中气门螨3新记录和3已知种雄螨后若螨描述。
The present paper reports 3 new records of mesostigmatic mites and descriptions of males and deutonymph of 3 known species.
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