汽车发动机经常在非稳态的过渡工况下工作，即启动、暖机、突加和突减工况。
The automobile engine is usually worked under non steady state of transient operating conditions, i. e. starting, warming, suddenly loading and unloading.
基于发动机物理模型的过渡工况空燃比控制方案，可以提高发动机过渡工况的空燃比控制精度。
A model based air fuel ratio control system is put forward, which can improve the accuracy of air fuel ratio control under transient condition.
本文通过分析近期的现场测试数据，给出了混流式水轮机转轮叶片在启动、甩负荷、停机三种过渡工况下的应力状态。
This paper describe the blade stress state of Francis turbine in the course of starting, load rejection, stalling by analysing the field test data.
本文对车用风冷发动机汽缸盖的非稳态温度进行了实测，分析了启动、突加和突减三种过渡工况下汽缸盖温度的变化规律。
This paper measured the non steady state temperature field of cylinder head in an air cooled engine. It analysed the temperature variation under transient operating conditions of engine.
介绍了水力机组的过渡过程种类，分析了抽水蓄能电站可逆式机组水泵工况下过渡过程的特性。
The characteristic of the transient process of reversible unit under water pump condition of in pumped-storage station was analyzed.
系统分析了带有非轴对称球锥过渡环壳的球面舱壁的结构组成、受力工况、强度与稳定性要求，用有限元方法对各参数进行了强度优化与稳定性优化。
In the article we analyse the structure compose, the endure force status, the request of strength and stability on the domed bulkhead with nonaxisymmetry sphere-conical transitional annulated shell.
仿真结果表明该模型在稳态工况下模拟结果及动态过渡过程曲线均与工厂操作数据吻合，仿真模型可靠。
The simulation results showed that the dynamic transferred curves were in correspondence with the process operation data, so that the simulation model was proven to be reliable.
火花点火在SI／HCCI燃烧模式切换工况时，能提高瞬态过渡平顺性。
Spark ignition is beneficial to the smooth transition between the combustion modes for SI/HCCI hybrid engine.
根据工况环境，系统分为夏季、冬季、过渡季三种模式。
According to working conditions, the system is divided into summer period, autumn period and interim these three models.
根据工况环境，系统分为夏季、冬季、过渡季三种模式。
According to working conditions, the system is divided into summer period, autumn period and interim these three models.
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