轮缘

Chapter seven studies the methods of finding resonance frequency of centrifugal worm housing, analyses the relationship between the sound radiation of fan and wheel tip velocity index under different worm housing sound impedance and a new noise control method is presented for centrifugal fan.

第七章，研究了离心风机蜗壳基频共振频率及高阶模态频率的确定方法，分析了蜗壳声阻抗及其对叶轮声辐射轮缘速度指数的影响，为风机的降噪提供了一种新的途径。

The computation model of two-point contact (for cone-tread) and conformal contact (for worn-tread) resulting from wheel flange close to rail is firstly established in this paper. A detailed analysis is made of the wheel/rail contact force, contact status and wheel/rail stress distribution on the different action of tractive forces and transverse forces. We draw some important conclusions, one of which is that the locomotive adhesion performance will decrease with the increase of transverse forces between wheel and rail.

本文建立了车轮轮缘贴靠钢轨形成的轮轨两点接触和共形接触的计算模型，对不同的牵引力矩、不同的横向力作用下的轮轨接触力、接触状态和轮轨应力分布进行了详细的分析，得出了轮轨间横向力增大会降低机车粘着性能等一系列重要结论。

A laser sensor is moved along the profile by a linear unit to record the profile. The computer picks up the profile by simultaneous recording of the travel distance and the laser distance values and then the characteristic variables such as wheel flange thickness, wheel flange height, wheel flange width, qr dimension and wheel gauge are measured.

一个激光传感器沿着车轮外形作线性运动并记录表面数据，计算机通过记录扫描运行距离和激光距离数值得出车轮表面外形数据，以及特征变化参数，例如车轮轮缘厚度、高度、宽度，方位及车轮规格尺寸。

Main products handle the ball, handle sets, has a long handle sets, handle rod, oval handles, rotating handle, surface rotating handles, small rotating handle, can handle security pack, tight set of adjustable handles, small ripple hand wheel, small hand wheel, Chrome hand wheel, milling machine hand wheel, a round flange hand wheel, back corrugated hand wheel, the corrugated hand wheel, double the rate of the hand wheel, double-handle hand wheel, disc hand wheel, hands, hands Cross, Star handle, embossed handle, the handle of bellows, Wu Jiaoxing-shaped handles, butterfly handle, 1.30 Arrow hands, T-shaped handle, an oval handle, the bow handle, a square handle, shake handles, adjustable plastic cooling pipe, cylinder Rubber shields, TL-1-engineering plastics Tuolian.

主要产品有手柄球、手柄套、长手柄套、手柄杆、椭圆手柄、转动手柄、曲面转动手柄、小转动手柄、可折安全手柄、可调位紧定手柄、小波纹手轮、小手轮、镀铬手轮、铣床手轮、圆轮缘手轮、背波纹手轮、内波纹手轮、双幅条手轮、双柄手轮、碟形手轮、把手、十字把手、星形把手、压花把手、外波纹把手、五角星形把手、蝶形把手、三角箭形把手、T形拉手、椭圆拉手、弓形拉手、方形拉手、摇动手柄、可调塑料冷却管、圆筒橡胶防护罩、TL-1型工程塑料拖链。

A rib heat transfer model is then used to calculate the equivalent heat transfer coefficient of the blade passa...

在汽轮机转子的温度场与热应力场有限元分析中，该计算方法为确定叶轮轮缘的传热边界条件提供了依据。

The result of comparing horizontal wheel leading with wheel-edge leading show that the former is effective to improve the travelling characterastics, and something which should be peid attention to the design of horizontal wheels is pointed out.

通过分析比较水平轮导行和轮缘导行的计算结果，证明了水平轮导行在改善起重机运行特性方面产生的效果，并指出了水平轮设计应注意的问题。

Crack and rupture There were 13 tank cracks, 2 body ruptures one roof hole and one flange crack resulting in 13 spillages including oils, hydrochloric acid, sulfuric acid, molten sulfur, and sodium cyanide solution, 3 fires and explosions, and the falling of one operator.

裂缝和破裂那里是13 坦克镇压、2 身体破裂一个屋顶孔和一个耳轮缘裂缝造成13 spillages 包括油，盐酸、硫酸、溶解的硫磺、和钠氰化物解答、3 火和爆炸，和下落一名操作员。

The research and improvement are made on such problems exposed in operation of the 320 t torpedo type mixed iron cars as the coupler deform,damage of draft gears,kerf of center plate bolts,bad lubrication of center plate and wheel flange,and environment pollution.

针对320 t鱼雷型混铁车在使用中暴露出的车钩变形，缓冲器损坏，心盘螺栓剪断，心盘、轮缘润滑不良与环境污染等问题进行了研究与改进。

Care must be exercised to avoid damaging the tire bead or inner tube.

要当心不要损坏轮胎轮缘或内胎。

A tire tool or flat stock can be used to pry one part of the bead up over the rim flange.

可用轮胎工具或扁平的撬棒把轮缘的一端从轮辋辋圈上撬起。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。