知识问答
最佳答案：Friction can be increased by adding decorative patterns on the surface of gear.
最佳答案：目前的中美贸易摩擦不是一方能够解决的问题The current Chinese-US trading conflict is not a problem whi
最佳答案：The object is subject to two forces --- gravity and tension respectively,and the
最佳答案：As static or friction,slight penetration can be generated possibly,which is caus
最佳答案：the dangerous cargo handlers should wear protection wearings according to cargo
最佳答案：From my rearview, I saw a car suddenly brake as well as the white smoke raising
最佳答案：The drilling heat comes from chip deformation and mechanical friction,comparing
最佳答案：After we were hearing the story,in a farther sense,A and B coming across stand f
最佳答案：Jia Pingwa's novel "the deserted city" for us to construct an aesthetic world,th
最佳答案：The conflicts in trade are always caused by the different culture.There are not
最佳答案：1 my parents and I was born in different times, they accept education and though
最佳答案：Meteor is solid particle in space moving close to the earth and being pulled by
