英语释义

1. an airtight pipe or channel extending downward into the tailrace from a turbine wheel located above it to make the whole fall available

片语

draft-tube floor尾水底板

DRAFT CONE TUBE尾水锥管

DRAFT ELBOW TUBE LINER里衬

draft t tube引流管

draft-tube resonance尾水管共振

DRAFT ELBOW TUBE尾水肘管

draft-tube branch尾水支管

draft frame tube牵引机架横柱

英汉例句

• hydrodynamics and desulfurization characteristic were compared for rectangular draft tube spouted bed and rectangular spouted bed and conical-cylindric spouted bed.

  对无导流管矩形喷动床与导流管矩形喷动床及柱锥形喷动床的流体力学性能和脱硫性能进行了对比。

• the volumetric oxygen transfer coefficients and the fluid circulation rates in the draft tube are correlated based on the…

  根据实验数据，建立了反应器中的氧传递和提升筒中流体流动的关联式。

• the volumetric oxygen transfer coefficients and the fluid circulation rates in the draft tube are correlated based on the experimental data.

  根据实验数据，建立了反应器中的氧传递和提长筒中流体流动的关联式。

• the unsteady flow in a draft tube of francis turbine under the off-design operation is produced by the dynamic behavior of a helical vortex rope with the dead core.

  混流式水轮机在非设计工况点下运行时，尾水管内部的非定常流动是由死水域和螺旋涡带的动态行为引起的，尾水管上部的螺旋涡带旋转引起流动的基频脉动。

• with the analysis of hydraulic pressure fluctuation in draft tube during the starting process as an example, it attempts to find its time variation with the operation conditions.

  以机组启动过程中的非平稳尾水管水力压力脉动信号分析为例，研究压力脉动在过渡过程中的时变特征。

• in the meantime, the helical vortex rope in draft tube is analyzed by t…

  本文还根据计算结果分析了尾水管内非定常涡带产生和传播的原理。

• combined with the taligan powerplant project of ir an , common draft tube is remodeled to high-and-narrow type draft tube.

  结合伊朗塔里干电站项目，将普通尾水管改型设计成窄高型尾水管。

• stress of surrounding concrete of each draft tube is analysed by the finite-element method under condition of the highest hydraulic pressure and the variable regularity of stress is obtained.

  基于有限元法，分析了两个尾水管在各自最大内水压力条件下外围混凝土的受力，得到各自的应力变化规律和特点。

• there iss strong vibration in the draft tube of a francis turbine or axial flow fixed blade propeller hydraulic turbine when the turbine is running on part loading.

  混流和轴流定浆式水轮机在部分负荷下运行时，尾水管中常出现较为强烈的振动。

• with the fft analysis it is analyzed that the pressure surge changing laws in the taper pipe and draft tube in time domain and frequency domain.

  通过水压力脉动数据的fft频谱分析，研究了直锥段和尾水管内部在不同位置不同工况下的压力脉动在时域及频域上的变化规律。

• the fact that the pressure pulsation in the draft tube may be reduced by modification of runner cone of these turbines has been observed.

  改变混流式水轮机泄水锥的结构，可以降低尾水管压力脉动值。

• in the experimental study, the pressure surge data are acquired at 26 points from the taper pipe intake to the draft tube exit distributing at 8 sections under 6 stable operating conditions.

  对水轮机模型，测取了从直锥段进口至尾水管出口8个截面共26个测点在6个稳定运行工况下的水压力脉动数据。

• to diagnose accurately vortex rope in draft tube of hydraulic turbine, this paper presents a new method of fault diagnosis based on wavelet packet and neural network.

  为精确诊断水轮机尾水管涡带，该文提出一种基于小波包特征熵的神经网络故障诊断新方法。

• in the meantime, the helical vortex rope in draft tube is analyzed by the principle of its production and spread.

  本文还根据计算结果分析了尾水管内非定常涡带产生和传播的原理。

• mathematical model for aerated spouted bed with draft tube was established, model calculated value agrees with experimental value.

  建立导向充气喷动床的流动行为数学模型，计算值与实验值吻合，可作为导向充气喷动床设计与操作的参考。

• the draft tube of hydraulic turbine for chanwusu powerstaion is made up of draft tube elbow and draft tube cone, its installation will be finished by step.

  察汗乌苏电站水轮机的尾水管尾水肘管和尾水锥管，其施工工程也是分步进行的。

• the reactor consists of one conventional draft tube and three convergence_divergence draft tubes.

  反应器包含一个传统的导流筒和三段缩放型导流筒。

• amplitude and phase of pressure fluctuation at the inlet of draft tube as well as the inner flow in draft tube are analyzed in detail.

  详细分析了尾水管进口截面的压力脉动的幅值和相位，并对尾水管内的流动做了分析。

• when ratio of draft tube diameter to reactor diameter was 0.5, a maximum in solid loading appeared.

  固体相含率先增加后减少，对固体相含率而言，当导流筒直径与反应器直径之比为05时，固体相含率最大；