行程终端，具有缓冲机构，避免构件的损坏。
There is a buffer in the end of whole distance, avoiding damage of component.
矿车碰头弹簧其基本组成为车箱、车架、缓冲器、联接器和行走机构。
Harvesters meet spring the basic form for the trunk, frame, buffer, coupling and walking mechanism.
矿车碰头弹簧其基本组成为车箱、车架、缓冲器、联接器和行走机构。
Harvesters meet spring the basic form for the trunk, frame, buffer, coupling and walking mechanism.
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