Cramped structure, high power-absorbing ability, and lower rebound force are the main advantages.

其特点是结构紧凑，吸能量大，且无反弹。

youdao

Cramped structure, high power-absorbing ability, and lower rebound force are the main advantages.

其特点是结构紧凑，吸能量大，且无反弹。

youdao