The method is adapted not only in the analysis of bending out of shape in elasticity when a long blade of steam turbine has been rotating,but also dynamicstate analysis of ther blades[1].
该方法不但适用于汽轮机中长叶片在做旋转运动时的弹性变形分析，而且也适合其它长叶片旋转的动态分析。
With the improvement of design and manufacture of steam turbine,the long blades with complex dampers are used widely in supercritical and ultra-supercritical steam turbine,the previous reliability evaluation method of blade shows limitations,it is necessary to develop a method to evaluate the reliability of blade based on .
目前汽轮机叶片设计和安全性考核主要采用的是以许用应力为基准的静强度准则和以安全倍率为基准的动强度准则,随着汽轮机设计制造水平的提高,尤其是近年来在超临界和超超临界大功率汽轮机中广泛采用具有复杂阻尼结构的长叶片,该方法已经表现出越来越多的局限性,建立一套从寿命损耗角度评估叶片安全性的方法十分必要。
Two ways of simulating long blades,used in the mentioned calculation,are proposed.
用三维有限元法对某150 MW汽轮发电机组低压转子的临界转速进行了计算,提出了2种模化长叶片的方法,将计算结果和传统计算方法所得结果以及现场实测数据进行比较,表明所提出的2种模化方法都是可行的,为其它长叶片转子振动计算的有限元三维实体建模提供一定的借鉴作用。
Comparison on five methods for extraction of RNA from Echinococcus multilocularis metacestode Larva and Studies on amplification of DNA long fragments with RT PCR;
5种多房棘球绦虫续绦期幼虫的制备RNA方法比较及长片段DNART-PCR扩增方法研究
The Optimization of Aerodynamic Performance on a Long Blade Stage
某汽轮机长叶片级静叶栅气动性能优化
In the first year it produces foliage only and photosynthesizes.
第一年，只生长叶片进行光合作用。
Analysis of Frequency Characteristics for 1 200 mm Blade
1200 mm长叶片频率特性分析
An Finite Element Analysis for Stresses and Twist Recovery Angle of Long Blades in Steady Operation
长叶片和叶片组稳态应力及扭转恢复角的有限元法
First Research on the Relationship Between Blade Area and Petiole Length,Internodes Length,Leaf Inclination Angle of Trees
树木叶片面积与叶柄长、节间长和叶倾角的关系初探
Study of Optimization on the Length of the Splitter Blades in Centrifugal Impeller;
离心风机叶轮附加小叶片长度的优化研究
The Effects of Leaf/fruit Ration on Growth, Development and Leaf Senescence of Muskmelon(Cucumis Melo L.);
叶果比对甜瓜生长发育及叶片衰老的影响
Effect of fertilization on the growth and chlorophyll content of Buffalograss
施肥对野牛草生长及叶片叶绿素含量的影响
The broad-leaved forest is vast, with well-grown trees.
这片阔叶林面积很大, 树木长势很好。
two to four-leaf stage of weeds
杂草长到二至四片叶子阶段
The leaves have burst forth in a riot of green.
叶子一下子长出来了。呈现出一片碧绿。
(3) Leaf with normal blade and petiole, such as Pereskia aculeate Mill.
(3)叶子片状,生长正常的像:仙人藤.
Blade Length Design and Influence Factors of Wind Turbine
关于风电叶片长度的设计及影响因素
Research on Francis Turbine Runner with Long and short Blades Based on CFD
基于CFD的长短叶片水轮机转轮研究
Vibration-prevention Lathing Process for Long Shaft Circumference of Tapered Spiral Blades
锥形螺旋叶片长轴外圆防振车削工艺
The plant of "Yudan 12" looked like a rhombus for its shorter upper and basal leaves and longer middle leaves.
掖单12植株看上去为菱形，其上部和基部叶片较短，中部叶片较长。
low-growing fan-leaved palm of coastal southern United States having edible leaf buds.
生长于美国南部海岸，扇形叶片，生长慢，叶芽可食用。
American everlasting having foliage with soft wooly hairs and corymbose heads with pearly white bracts.
具有柔软且长有绒毛叶片和长有珍珠白苞片伞房花序的美洲蜡菊。
