| 摘要 |
A shock absorber includes a piston(3) which makes the cylinder(2) be connected to an axle, and the cylinder(2) is full of oil(4). A new orifice(10) is formed at the outer part of the original orifice(9), and a hole(11) receiving a ball(14) and a spring(13) to be used to open or close the orifice(10) is connected with the orifice(10).
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