涡轮螺旋桨发动机

The vessel to be propelled by a single-acting two stroke supercharged cross head Diesel engine, acting to a fixed pitch propeller.

该船的主机为单作用，二冲程，带涡轮增压器的十字头柴油发动机，并且螺旋桨为定距桨。

These engines deal with larger comparative airflows and lower jet velocities than the pure jet engine, thus giving a propulsive efficiency (Part 21) which is comparable to that of the turbo-prop and exceeds that of the pure jet engine fig.

因而，其推进效率(第21章)与涡轮螺旋桨的相当，超过了纯喷气发动机的推进效率(图1-lO)。

This passage, from the angle of rotating mechanics, analyses the effect that the precession effect of the propeller and engine rotor has on flying qualities and operation qualities among giant turboprop airplanes.

从转动力学的角度，分析了在大型涡轮螺旋桨飞机中，螺旋桨和发动机转子进动效应对飞机飞行品质和操纵品质的影响。

MA60 passenger planes used in the first of China's Aviation Industry Corporation I's Xi'an Aircraft Industry Company to develop, produce dual-engine turboprop aircraft, their safety, economy, comfort, maintainability and driving quality have reached a level of contemporary advanced regional jet.

首航使用的MA60客机是中国航空工业第一集团公司下属西安飞机工业公司研制、生产的双涡轮螺旋桨发动机支线飞机，其安全性、经济性、舒适性、可维护性和驾驶品质都达到了当代先进支线客机水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。