题目内容

The machining precision of the wheel frame is not enough, which causes the deformation of the frame after the wheel is installed tightly and causes ()

A. the wheel not to turn
B. Wheel deflection
C. Wheel swing
D. Wheel fracture

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Generally speaking, the wheel with the hardness of ______ is hard and suitable for long distance; the wheel with the hardness of ______ is moderate and suitable for various distances; the wheel with the hardness of ______ is soft and suitable for short distance

we can use a shoe reamer,This tool is mainly for the length of roller skates and foot width sizeis not suitable for foot size and make fine tuning,Push the roller skates into the shoe reamerUse a ______ to heat areas that need to be expanded

The hardness of the wheel has little influence on the speed of taxiing. In different use situations and race distances, the wheel with the same hardness should be selected

Speed roller skates belong to

A. gym shoes
B. Sports equipment

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