求翻译：弹簧式缓冲器；摩擦式缓冲器；橡胶缓冲器；摩擦橡胶式缓冲器；粘弹性橡胶泥缓冲器；液压缓冲器和空气缓冲器等。是什么意思？

Spring buffer; friction shock absorber rubber buffer; friction rubber shock absorber; viscoelastic rubber mud buffer; air and hydraulic buffer buffer, and so on.