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As a result of characteristic of function of material of steeliness bearing oneself, the main form of bearing invalidation is exhaustion flakes, fatigue life limits of short, application gets very big limitation.

由于钢制轴承自身材料性能特点，轴承失效的主要形式是疲劳剥落、疲劳寿命短、应用范围受到很大限制。而陶瓷材料si3。。。。。。

Cixi City Tianyun Bearing Co., Ltd is a modern manufacturer, which is specialized in producing and developing various subminiature and miniature deep groove ball bearings, and is located in China Bearing Town with beautiful scenery and convenient traffic — Henghe Town ,Cixi City, Zhejiang Province.

慈溪市天运轴承有限公司是一家专业从事生产和开发各类微型、小型深沟球轴承的现代化生产企业，坐落于风景秀丽、交通便捷的中国轴承之乡——浙江省慈溪市横河镇。

A series of cholesterol-bearing O-carboxylmethyl chitosan conjugates with different degrees of substitution of the cholesterol moieties and cholesterol-bearing chitosan were synthesized by the succinyl linkages and characterized by Fourier transform infrared, Proton Nuclear Magnetic Resonance (~1H NMR) and elemental analysis. These hydrophobized chitosan derivatives were amphiphilic in nature and their self-aggregation behavior in aqueous media was evaluated by the fluorescence probe technique.

课题的主要研究内容如下：采用化学的方法合成了不同分子结构、不同取代度的系列胆甾醇基壳聚糖衍生物—胆甾醇基壳聚糖和胆甾醇基-羧甲基壳聚糖，并应用先进的分析手段电位滴定、红外光谱法(IR、核磁共振波谱法等对原料、中间产物以及产物进行了结构表征，衍生物分子中的胆甾醇基取代度(3.2％～12.5％)采用元素分析的方法进行检测。

The shifting drive bearing is a new spe-cial type bearing with supporting function as well as speed change function.

变速传动轴承是一种新型的既具有支承功能又具有变速功能的新型特种轴承。

With sympathetic vibration demodulation of the vibration signal of the low-speed, high-load bearing which is realized by means of generalized harmonic wavelet transformation, the impact information of faulty hearing is extracted, which promises a new and effective method for the fault diagnosis of the bearing.

通过广义谐波小波变换实现低速重载轴承振动信号的共振解调，从而提取出故障轴承的低频冲击信息，为低速重载轴承的故障诊断提供了一种新的有效方法。

The following produce bearing trees are found near many villages: Stillinga Sebifera or Tallow tree (lozenge shaped leaves covered in autumn with fruit capsules furnishing vegetable tallow) and Aleurites Fordii or wood oil tree (large cordate leaves, large white flowers in May and in autumn bearing fig-like fruit with a green leather like shell).

附近很多村庄里有结果子的树：像乌桕树（叶子成菱状、秋天结果实、果实里能用来榨油）和油桐树（叶子成大心形，五月开白色大花，秋天结绿色无花果，果皮坚厚）。

New accessible long-term production and sale of foot brush pressure molding machine, drilling machine pressure foot gong machine spindle molding machine fittings imports of Chinese-made machine stress foot brush, foot stress tablets rigs such as the development of knife Block Sales: Taiwan substantial, Taiwan Li-song, Taiwan's total grid, Taiwan Ende, Germany SCHMOLL, Italian PLURITEC, USA ACC, the United States EXCELLON, Japan's Hitachi, Switzerland POSALUX, Chongqing substantial Vientiane, Chengdu Tianma stars VEKEN Han ten thousandNC NC East Units Klingelnberg long Ze 6 The United States United States Telemark Telemark 5 JAGER various drill chucks knife Block molding machine needle plate for industrial use in vitro toothbrush cleaning rod pin brush sets Central, QIC thrust bearing, air bearing surrounding the circuit board supplies, such as fittings, quality and high precision, stable quality, price concessions, there are hundreds of traders PCB supplies, drilling machine repair business with the Division has built cooperative relations many enterprises are designated suppliers, are popular among clients trust and support.

新易达公司长期生产，销售成型机压力脚毛刷，钻孔机压脚，锣机主轴配件成型机进口国产机压力脚毛刷，钻机压力脚垫片刀座等开发销售：台湾大量、台湾力嵩、台湾总格、台湾恩德、德国SCHMOLL、意大利PLURITEC、美国ACC、美国EXCELLON、日本日立、瑞士POSALUX、重庆大量万象、成都星维科天马大族数控万达松林数控东台KlingeLnberg 龙泽美国玛克6 美国玛克5 JAGER等各种钻机成型机夹头刀座针盘工业用牙刷试管通条刷销钉套环、QIC止推培林，空气培林等线路板周边耗材配件，品质精度高、质量稳定，价格优惠，全国有数百个PCB耗材贸易商，钻孔机维修商与本司建有合作关系，是众多企业公司指定的供应商，深受广大客商信任和支持。

In this paper ,to overcome the shortcomings in 3MK133 Groove Grinder's hybrid spindle system that the shallow slots of the throttler are easy to be blocked and difficult to be disassembled to clean,we use the throttler which is put on the big-side surface of the conical bearing to replace the traditional throttler, change gap throttling to capillary throttling, and adjust the taper of the conical bearing , oil return way , seals and sealed mode.

针对 3MK133沟道磨床动静压主轴系统中，节流器浅沟容易堵塞及拆卸清洗不便等缺陷，提出采用端置式节流器替代原有的内置式浅沟节流器，变间隙节流为毛细管节流，并相应调整了主轴系统中圆锥轴承的锥度、回油通路、密封装置及密封方式。

The resistances to bending, such as ultimate bearing moment and cracking moment, have been analyzed and corresponding calculating methods have been developed.7. In this paper, the ultimate bearing moment of TRC beam with T-shaped cross-section is calculated through two ways.

本文对纤维编织网增强混凝土矩形截面梁的抗弯能力，包括极限弯矩和开裂弯矩进行了计算分析，并给出了计算方法。

Upper Triassic series Chang 3 oil-bearing formation in the study area is the main oil-bearing formation in Zhenbei Area.

研究区内的上三叠统延长组长3油层组是镇北地区重要的含油层系。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐