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.
它是传统沙袋更新换代产品、不需吊挂具有缓冲性。
It is a traditional sandbag replacement product, without hanging, with a buffer.
针对传统抗冲击性复合材料的问题，研发了具有缓冲减振能力的多元组合抗冲击防护材料。
Aimed at the problem of traditional resist impact composites has only resist impact function, a multi-combination resisting impact protective material with the capacity of buffer shock be developed.
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