Head protection for child and adult pedestrians was better than average 对儿童和成年行人的头部保护比平均水平要高。
3.
It ' s for head protection 是保护头的动作
4.
Respiratory protective devices - full face masks connected with fire fighters head protection for use as a part of a respiratory protective device 呼吸保护设备.用作呼吸保护设备一部分的与消防员头部