| 摘要 |
A support consists of cylinder (1) wired in a frame of an undercarriage. The cylinder (1) is equipped with piston (2) and rod (3), in which a shaped thorn (5) is placed. The shaped thorn (5) is wired in lid A (6) of cylinder (1) and there are latches operated by a spring (11) at his end. The rod (3) is ended by knuckle bolt (14) with a support plate (16).
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