查询词典 roller-skated

Chromium oxide ceramic coating has proven to be laser engraving the best roller surface material and the roller surface coating technology is plasma spraying.

氧化铬陶瓷涂布已被证明是激光雕刻网纹辊的最佳表面材料，而网纹辊表面陶瓷涂布的新技术就是等离子喷涂。

A APDL program is developed for analyzing the contact stress of journal bearing pair of roller cone bit. The 25 contact stress cases of different clearance fit(including clearance of large bearing is bigger, equal to and smaller than that of small bearing) journal bearing pair of the 8 1/2XXX roller cone bit are analyzed. The result is that the maximum contact stress is less when the clearance of large journal bearing pair is smaller than or equal to that of small journal bearing pair.

用参数化设计语言APDL编制了牙轮钻头滑动轴承的ANSYS接触有限元分析程序，根据钻头制造厂方提供的某8 1/2的轴承配合间隙尺寸，分三种不同的间隙配合（大轴间隙大于小轴间隙、大轴间隙等于小轴间隙、大轴间隙小于小轴间隙），共25种情况，对轴承的表面的接触应力进行了分析，得出：大轴间隙小于等于小轴间隙时最大应力比较小。

The main jobs and results show that:With the mechanical knowledge and technical condition,affords the mathematical modules about the roller diameter value range,the roller wheelbase value range and the axis neck diameter value range of coil box,and gives the method of experiential values .

本文从事的主要工作如下：利用力学知识和工艺条件，提出了确定热卷箱弯曲辊辊身直径、弯曲辊辊距、弯曲辊辊颈直径取值范围的数学模型，并给出了经验取值的方法。

Making the full use of the theoretical knowledge of FEA,contact mechanics and friction wear,and integrating with the research of other domestic and international scholar. Starting with analyzing working characteristics of journal bearing of roller cone bit, we finished the contact FEA of the journal bearing and the thrust bearing, using ANSYS software. The tolerance ranges of journal bearing of a roller cone bit are specially studied.

本文利用有限元、接触力学和摩擦学理论知识，同时结合国内外其它学者的研究，从分析牙轮钻头滑动轴承的工作特性入手，利用软件ANSYS完成了牙轮钻头中大、小轴承及止推轴承的接触有限元分析工作，对牙轮钻头滑动轴承的尺寸公差的取值，进行了专门的研究和探讨。

The Shandong Linqing communciation bearing factory beginning constructed in 1991, was one specialized production circular cone Roller bearing, the British system circular cone Roller bearing, outside the spherical surface bearing private enterpriseSince 1996, along with the service development, the product quality enhancement and the service consummation, more and more many overseas customers has started to like our product.

山东临清通联轴承厂始建于1991年，是中国汽车市场定点配套最佳合作诚信单位之一。是一家专业生产圆锥滚子轴承、英制圆锥滚子轴承、外球面轴承的私营企业。自1996年以来，随着业务的发展，产品质量的提高和服务的完善，越来越多的国外客户开始喜欢我们的产品。

The Shandong Linqing communciation bearing factory beginning constructed in 1991, was one specialized production circular cone Roller bearing, the British system circular cone Roller bearing, outside the spherical surface bearing private enterpriseSince 1996, along with the service development, the product quality enhancement and the service consummation, more and more many overseas customers has started to like our product.

山东临清通联轴承厂始建于1991年，是中国汽车市场定点配套最佳合作诚信单位之一。山东临清通联轴承厂是一家专业生产圆锥滚子轴承、英制圆锥滚子轴承、外球面轴承的私营企业。山东临清通联轴承厂自1996年以来，随着业务的发展，产品质量的提高和服务的完善，越来越多的国外客户开始喜欢我们的产品。

In China, the roller bearing cone bit is now equipped with short cylindrical roller, which has stress centralization on the edge, and it easily causes fatigue failure on the contact area.

国内现有牙轮钻头滚动轴承多采用短圆柱滚子轴承结构，滚子边缘处存在应力集中现象，使得轴承接触表面极易发生疲劳破坏，为提高牙轮钻头滚动轴承杭接触疲劳寿命，提出在牙轮钻头滚动轴承中来用凹端圆柱滚子的方案。

In China, the roller bearing cone bit is now equipped with short cylindrical roller, which has stress centralization on the edge, and it easily causes fatigue failure on the contact area.

国内现有牙轮钻头滚动轴承多采用短圆柱滚子轴承结构，滚子边缘处存在应力集中现象，使得轴承接触表面极易发生疲劳破坏，为提高牙轮钻头滚动轴承抗接触疲劳寿命，提出在牙轮钻头滚动轴承中采用凹端圆柱滚子的方案。

This paper takes account of the several factors including the contour curve of cam,the accuracy of motion, structure size and the time of normal work of cam mechanism by discussing the relationship between the roller radius and contour curve ,the touch-stress between the roller and cam, the thickness of lubricant film.

以凸轮机构的凸轮轮廓曲线、运动的准确性以及结构尺寸和寿命为考虑因素，讨论了凸轮机构从动件滚子的半径与轮廓曲线、凸轮高副的接触应力以及润滑油膜厚度等的关系，提出了滚子半径的选择原则。

Welcome to PRS , a leader in engineering, manufacture, service and support of high precision cylindrical cross roller bearing, taper cross roller bearing, wire race bearing, thin section ball bearing, eccentric combined bearing used in print machine, slewing rings etc from ID 100mm to 5500mm. PRS uses CAD, PDM, etc software and ERP, CRM, PROE, etc Management systems to better meet more expanding needs in recent years. At PRS, we realized that today competitive demand more than just products. That why, our engineers would only take half busines day to provide a primary drawing and answer variety of questions according to customers' requirements. In addition, we offer a variety of technical development and design in standard or nonstandard products. Our product sales engineers will provide in-time and correct price reply service within one hour for the worldwide customers.

我们拥有强大的技术开发能力，能够设计、生产各种标准和非标准产品，这种强大的技术开发能力造就了我们在精密圆柱交叉滚子轴承、精密圆锥交叉滚子轴承、钢丝跑道轴承、等截面薄壁球轴承、印刷机专用高精度偏心组合轴承、回转支承及其他产品领域中一直处于国内领先地位；近年来我们使用CAD、PDM、PROE等产品设计辅助工具和ERP、CRM等管理系统，不断提高我们工作的质量和效率，工程技术人员可以在半个工作日内为用户提供初步的设计方案，能够随时为用户解决各种疑难问题；同时我们产品销售工程师最快能够在1个小时内对全球用户询求的常规产品作出准确的价格回复。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。