Taking care of your full suspension or hard tail mountain bike can be very simple and it will also help increase its mechanicallife.
照顾您充分暂停或硬尾山地自行车可以非常简单，这也将有助于提高其机械寿命。
2
It expounds the important sense of tribology design of mining machinery to increase commercial efficiency, mechanical reliability and mechanicallife.
阐述了矿山机械摩擦学设计对于提高经济效益、机械可靠性以及延长机械寿命的重要意义。
3
On the load increased, but not sensitive to changes in friction coefficient, so heavy, the friction coefficient is extremely small, and the same long-term accuracy can have long-term mechanicallife.