充气轮胎又分为有内胎式和无内胎式两种。轮胎的充气量取决于轮胎的种类和用途。
Pneumatic tires are of two types, those using an inner tube and the tubeless type. The amount of air pressure used depends on the type of tire and operation.
在充气前，通常应该用千斤顶顶起汽车，使内胎能够均匀地沿着轮胎的每一处扩充起来。
Always jack up the car before inflating the tire so that the tube can distribute itself around the tire evenly.
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