The mesophyll is not differentiated into spongy and palisade tissues, but mesophyll near midrib in tip and middle parts of leaf is often lengthened to appear as palisade-liked tissue.
来自互联网
6. 采用定常流和非定常流计算方法研究了各种动静叶稠度组合对轴流压缩机性能的影响。
In this paper, the effects of solidity of rotor-stator cascades on axial-flow compressor performance are investigated with steady and unsteady flow calculation.
来自互联网
7. 利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。
Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor.
来自互联网
8. 文中给出了VKI透平叶栅内的定常流结果和1.5级透平叶栅内的非定常数值结果。
Numerical results of steady flow in the VKI gas turbine cascade and unsteady flow in a 1.5 stage steam turbine are presented.
In regard to the excitation experiments, time-Accurate numerical stimulation was carried out to investigate the upstream disturbance frequency effect under different incidence in an annular cascade.
来自互联网
10. 一种北美落叶树(美洲榆)，有双齿叶和双翼果，主要作为观赏性浓荫树，但常患荷兰榆树病而坏死。
A North American deciduous tree (Ulmus Americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
来自互联网
11. 本文给出了一个模拟叶栅内准三维定常和非定常粘性流动的数值方法。
A numerical method for the simulation of quasi-3D steady and unsteady viscous flows in cascades has been presented.
来自互联网
12. 本文给出了一个模拟叶栅内准三维定常和非定常粘性流动的数值方法。
A numerical method for the simulation of quasi-3D steady and unsteady viscous flows in cascades has been presented.
