弹簧的形式为由弹性材料制成且具有两个轴向间 隔分开的端部（13、14）的环状主体（7）。
The spring is in the form of a ring-shaped body (7) manufactured of an elastic material having two axially spaced-apart ends (13, 14).
弹簧的形式为由弹性材料制成且具有两个轴向间 隔分开的端部（13、14）的环状主体（7）。
The spring is in the form of a ring-shaped body (7) manufactured of an elastic material having two axially spaced-apart ends (13, 14).
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