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ZhuRong rover lands on Mars has given a further boost in international influence which will also affa
News 32Days Ago (05-17)ZhuRong rover lands on Mars; China joins US as only nations to successfully land on planet China has become the second country in the world to successfully land on Mars after its " Zhu Rong " probe landed on the red planet. Zhu Rong boarded the Astronomy... -
The influence of load on lubrication
Products 109Days Ago (03-01)The friction between objects is determined by the contact surface pressure and the friction coefficient of the contact surface material. Bearing rings and rolling element materials are generally made of GCr15 steel. It can be considered tha...
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