Forces must exist between the object(物体) and the incline(斜面) that prevent the object from sliding.

The country is sliding into the depths of _________as its exports fall. (retailer)

now the president that inflation was a much more serious threat to the sliding national

The country is sliding into a _____. A: development B: depression C: prospeity D: recycling

The force for axoneme bending is derived from the A: sliding movement of central pair microtubules. B: contraction of central pair microtubules. C: sliding movement of outer doublet microtubules. D: contraction of outer doublet microtubules.

Gravity transportation refers to the method that ore from the working face to the stage transportation level completely depends on gravity sliding.

Sliding ________ his desk, he pats my shoulder and asks, "Hi, what's up?".

Which type of title does this title “Application of sliding mode in the construction of reinforced concrete” belong to?

With prices ____fast, small computers are becoming popular. A: rising B: sliding C: changing D: going

Sliding friction between the _________ of the cam and the cam follower is considerable. A: inside B: front C: surface D: back