An ideal fluid is usually defined as a fluid in which there is no friction.()
An ideal fluid is usually defined as a fluid in which there is no friction.()
The mechanical efficiency of an engine （） because losses occur in the form of friction.
The mechanical efficiency of an engine （） because losses occur in the form of friction.
A body, .........................it is in motion, would never stop itself if there were no friction.
A body, .........................it is in motion, would never stop itself if there were no friction.
Without friction, there could be no brake.
Without friction, there could be no brake.
“Friction”和“Wear”分别是
“Friction”和“Wear”分别是
The damage of the machine ____ too much friction. A: because of B: is because C: is due D: is due to
The damage of the machine ____ too much friction. A: because of B: is because C: is due D: is due to
下面哪个参数是材质的动力学属性？（） A: ABounce Coefficient B: BStatic Friction C: CSliding Friction D: DFriction Coefficient
下面哪个参数是材质的动力学属性？（） A: ABounce Coefficient B: BStatic Friction C: CSliding Friction D: DFriction Coefficient
Which of the following is an example of “friction” in a user experience?
Which of the following is an example of “friction” in a user experience?
The more the friction of an engine ,the more power It can develop.
The more the friction of an engine ,the more power It can develop.
On the Delight Gear, what is/are the qualities of a Friction Free Story?
On the Delight Gear, what is/are the qualities of a Friction Free Story?