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In the model of ball bearing, three nonlinear factors were considered, such as the clearance of bearing, nonlinear Hertzian contract force between balls and races, and the varying compliance vibration because of periodical variety of contact position between balls and races.

在滚动轴承模型中，充分考虑了滚动轴承的间隙、滚动轴承的滚珠与滚道的非线性赫兹接触力及由滚动轴承支撑刚度变化而产生的VC振动，在转子系统中考虑了由于转子质量偏心而产生的不平衡力。

The discrete model of offset disk rotor is established with the finite element method. A two-degree-of-freedom model of ball bearing, including effect of Hertzian contact force, bearing internal clearance, is employed to investigate the dynamic characteristics of the rotor system supported by ball bearings.

应用有限元法建立偏置转子的计算模型，采用考虑轴承Hertzian接触力和内间隙等非线性因素的二自由度滚动轴承模型，建立了滚动轴承－偏置转子系统的非线性动力学模型。

In heterosporous plants, the microspores give rise to small male prothalli bearing male sex organs, and larger female sex prothalli bearing female sex organs.

在具异形孢子的植物中，小孢子形成具小的雄性器官的雄原叶体，而大孢子形成大的具雌性器官的雌性原叶体。

A diverse range of effects:on protein solubility and secretion was observed,and these effects were highly dependent on the particular chaperone.In the host strain over-expressing chaperone SecB harboroing pSecB,the amount of total periplasmic proteins was increased by about 71％and the activities of alkaline phosphatseand GL-7-ACA acylase(GL7A)were increased by about 54％and l.5-fold respectively.In the host strain over-expressing chaperone GroEL bearing pGroEL,the amount of total periplasmic proteins was increased by 52％,and the activity of penicillin G acylasewas in creased by about 76％;about 90％of Hexameric Calcitonin(Cal6)inclusion body and l5％of MS2interleukin3(MS2-HIL3)inclusion body became soluble respectively.All the data were compared with the parental strains un-bearing plasmdis pSecB or pGroEL.

在过量表达SecB的宿主菌中，周质空间分泌蛋白总量较对照组提高了约71％，GL-7-ACA酰化酶在周质空间酶的活力较对照组提高了约1.5倍，碱性磷酸酯酶在周质空间酶的活力较对照组提高了约54％；在过量表达GroEL的宿主菌中，周质分泌蛋白总量较对照组提高了约52％，青霉素G酰化在周质空间酶的活力较对照组提高了约76％，鲑鱼降钙素六聚体的可落性组分的比例由原来的45％增加到约90％，而MS2-人白介素-3融合蛋白的包涵体有约15％转变为可溶性组份。

When using the G5 steel ball, the German original or homemade low-noise bearing grease can control the vibration grade above Z3 and Z4. the insphere of bearing block can be H7 degree, which can totally substitute the similar imported products .

采用G5钢球，德国原装低噪音油脂或国产低噪音油脂，使轴承振动级别控制在Z3及Z4以上，轴承座内球面控制在H7精度，可完全替代进口同类产品。

For dilating the bearing life, bearing should keep lubricative well.

为延长轴承寿命，轴承应保持良好的润滑状态。

The marine stern tube bearing is a special structure and complicated load sliding bearing, which is always under foul lubricative state in real work, and always produces bad abrasion to get premature invalidation. This brings a great influence to ship s safely sailing and economic benefit.

船舶尾管轴承是一种受力复杂、结构特殊的滑动轴承，它在实际工作中处于极其恶劣的润滑状态下，常常产生严重的磨损而导致尾轴承的过早失效，这对船舶安全航行和营运经济效益带来很大的影响。

The technology of bearing and bearing steel and production level is crucial to the performance quality of lead plane, the performance demand of the respect such as efficient, energy-saving, environmental protection, macrobian life, high reliability is very high.

轴承和轴承钢的技术和制造水平对主机的性能质量是至关重要的，高效、节能、环保、长寿命、高可靠性等方面的性能要求非常高。

Japanese essence is versed in development went iron and steel to cast installation continuously (the equipment that connect casting) used macrobian life bearing " active platen uses mallet form ball bearing of macrobian life depart cylinder ", will roll out series product henceforth .

日本精工开发出了钢铁连续铸造设备使用的长寿命轴承&槌形主动滚筒用长寿命分离型圆筒滚珠轴承&，并将在今后推出系列产品。

So the reasonable way to improve bearing property is to create a kind of new bearing material,which has fine microstructures,that is,grains of the soft parts and hard parts are as thin as possible and metallographical tissue is uniformly distributed.

因此，创造一种微观结构优良的轴承材料，即软、硬组分晶粒尽可能均匀分布的金相组织，是提高轴承性能的合理途径。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。