使润滑

A method to analyze the dynamics of piecewise continuous system is presented, based on it, the chaotic oscillation of a harmonically forced spring-mass system with friction is studied. The impact of friction and other parameters on the chaotic oscillation of this system is analyzed.

分析了系统参数和摩擦模型对系统混沌行为的影响；发现了摩擦模型的选取对系统动力学行为分析的重要性；揭示出在一定条件下，系统参数、环境条件或润滑条件的改变都有可能使系统进入无序的混沌运动状态。

Today Petro-Canada is Canada's 11th largest company with important interests in such projects as Hibernia, Terra Nova, and White Rose; its gas stations remain a presence in most Canadian cities.

加拿大国营石油公司自1970年开始用二段加氢技术生产基础油并用於各类润滑油得调合，使其润滑油品性能迫近全合成油品得品质。

Ceramic cage has excellence performance as wear and corrosion resistance, high strength, lubrication and maintenance free when working. Adopting the ceramic cage, Ceramic bearing can be used in the most inclemency environments as corrosive, low temperature, high vacuum.

陶瓷制保持架具有耐磨损，高强度，耐腐蚀及自润滑的优点，采用陶瓷保持架制造的全陶瓷轴承可使用于极强腐蚀，超高低温及高真空等苛刻环境。

It has good high temperature character; it has good lubrication under high temperature and even in bad condition.

具有良好的高温性，使其在高温、恶劣的环境中起到良好的润滑作用。

SONY Sony and famous, SGS and other companies work together, so that lubricating materials Sagawa Sagawa series through the world's most stringent environmental standards, SONY-SS00259 test.

与著名的SONY索尼、SGS等公司一起合作，使SAGAWA佐川系列润滑材料通过全球最严格的SONY-SS00259环保标准测试。

Therefore, it has modern appearance and perfect radian, and gives up sharp corner angles to make its own appearance more lubricative with an inward shine.

所以，具有时尚的外型，完美的弧度，放弃了锐利的棱角，使自己的表面更加润滑，有一种内求的光芒。

When packing for the valve, the valve packing section and the same space, it is best Preloading Central: When the time for the pump, valve packing and the space section (about 0.3mm-0.6mm) axis and the disk so that there is a leakage of the root space is conducive to lubrication and cooling.

当盘根用于阀门时，盘根截面和阀的空间一样，最好是预压环：当用于泵时，盘根截面和阀的空间(约0.3mm-0.6mm)使轴和盘根有一泄露间隙，有利于润滑和散热。

Gastrointestinal serosa layer of the outer surface, so that the surface lubrication, easy activity.

胃肠外表面有一层浆膜，使表面润滑，便于活动。

All slideway are mandated centralized lubrication in order to maintain perfect dynamic characteristics with large load-bearing and high precision

机床各导轨均采用强制集中润滑，使导轨具有良好的动态特性，具有承载负荷大，精度高特点

RS+SLINGER type: The SLINGER is fixed to inner ring, rubber seal is fixed to outer ring. The rubber seal and inner ring can form standard torque contact sealing. This combination of two sealing elements can provide an effective barrier against the entrance of foreign matter, such as mud 、 dust 、 vapour, and the leakage of grease to keep the bearing in good working.

防尘盖与橡胶密封圈组合密封：防尘盖固定在内圈上与内圈一起旋转，橡胶密封圈固定在外圈上，密封胶唇与内圈形成标准扭矩接触密封，这种密封能有效地防止外部泥土、灰尘、水气等异物进入轴承内部，同时能阻止轴承内部的润滑脂外漏，使轴承在恶劣的工作环境下也能保持完美的工作性能。

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。