variable-pitch turbine造句

例句与造句

1. A hydrodynamic optimal method to enhance the energy conversion coefficient of the vertical - axis variable - pitch turbine is presented in this paper based on the analysis of the existing mathematical models , on the computational methods for predicting the hydrodynamic performance of turbines and on the available experimental results . by applying mathematical optimal theory , a mathematical model for optimizing the hydrodynamic attack angle of the blades of turbines is formulated and some numerical results are obtained as well
   本文在总结和研究竖轴可调角直叶水轮机水动力性能计算的现有数学模型，计算方法和实验结果的基础上，运用最优化理论，给出了改善和提高该种水轮机能量利用率的一种优化方法，建立了数学模型，并得到了计算结果。
2. At first an analysis of the basic principles of the vertical - axis variable - pitch turbine is given including two methods to calculate the induced velocity . one is the three different streamtube - methods which are single - disk single - streamtube ( sdst ) , double - disk single - streamtube ( ddst ) and multi - streamtube ( mtt ) method based on the momentum theory , the other is the vortex method ( vtth ) based on the potential eddy theory
   一是根据动量定理的流管模型得到的求解诱导速度的单盘面?单流管方法( sdst ) 、双盘面?单流管( ddst )方法、多流管( mtt )方法；二是根据势涡理论得到的求解诱导速度的的涡方法( vtth ) 。
3. It's difficult to find variable-pitch turbine in a sentence. 用variable-pitch turbine造句挺难的