查询词典 helical

However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.

然而蜗杆蜗轮传动机构中存在齿间有较大滑移速度的缺点，正像交错轴斜齿轮那样。

However, a disadvantage of worm gearing is the high sliding velocities across the teeth, the same as with crossed helical gears.

但是，蜗杆传动装置的一个缺陷就是，同交叉轴螺旋齿轮一样，两者在牙口之间都会产生很高的滑动速度。

Changsha, Hunan Tianming Machinery Industrial Co., Ltd. is a transmission gear, rack, chain wheel, crane slewing reducer, coupling, machine tool accessories, dual-metal bushing, pulley, bevel gear, helical gear, charcoal machine, worm gear, non - Standard design and processing, construction of the lift gear, manual steam valve, screw and nut, machine, ring gear, spline shaft and other products Co., Ltd. specializes in processing, the company is headquartered in Changsha, Hunan, Changsha, Hunan Tianming transmission machinery Industrial Co., Ltd. has a complete and scientific quality management system.

湖南长沙天明传动机械实业有限公司是齿轮、齿条、链轮、塔吊回转减速机、联轴器、机床配件、双金属衬套、皮带轮、锥齿轮、螺旋齿轮、木碳机、蜗轮蜗杆、非标设计及加工、施工电梯齿轮、手动汽阀、丝杆及螺母、分切机、内齿轮齿圈、花键传动轴等产品专业生产加工的股份有限公司，公司总部设在湖南长沙，湖南长沙天明传动机械实业有限公司拥有完整、科学的质量管理体系。

It has tons of safety features such as helical blades and dual-fulcrum, main pressure-bearing points lying on the two sides, the external framework of the wind wheel playing a dual-protection role for the safe operation of the wind turbine.

它吨的安全功能，如螺旋刀片和双支点，主要压力，低洼轴承点上，双方的外部框架内的风轮发挥了双重保护作用的安全运行的风力发电机。

Helical vortex is situated on conical tube on opening 12mm. It will disappear in the elbow tube.

尾水管中涡带主要集中于直锥段，呈螺旋型，在肘管处逐渐变小消失。

The research result fill the blank spaces on the helical vortex theory, and also builds a bridge between the theoretic study and engineering application.

对工程中其它螺旋涡流场的解析计算，同样可以利用本文的理论结果和分析思路。

By the analytical calculation method, the paper focuses on researching systematically flow field induced by helical vortex on aspects of theory and application.

本文主要运用解析法，从理论和应用两个方面对螺旋集中涡诱导流场问题进行了系统研究。

As mentioned above, by systematic research on helical vortex theory in the present paper, the primary theory with features of static state, single filament and core radius vanished have been developed into new one with motion, multi-vortex and finite-core.

在本文应用研究中，给出了三个实际工程流场解析解和数值计算结果，这些结果在进一步分析装置中的螺旋涡形成机理、分析被诱导流场的进出口边界条件、指导转轮叶片的优化设计、达到产生或消除螺旋涡目的等方面都具有重要意义。

Once through big helical tube steam generator is widely used in nuclearpower plant, power equipment, chemical industry and petroleum engineeringequipment.

大盘管直流蒸汽发生器在核电站以及动力、化工、石油等工程设备中有广泛的应用。

This paper analyzes the physical process of the two-phase flow inhelical tube and constructs the thermal hydraulic computational model foronce through big helical tube steam generator.

论文分析了盘管中两相流动的物理过程，构建了大盘管直流蒸汽发生器的热工水力计算模型。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。