Holographic Visor Helmet Mounted Display?
全息护目镜头盔显示器HVHMD ？
He pulled on a battered old crash helmet with a scratched visor.
他戴上了一顶破旧的、面罩上已有划痕的防护头盔。
This exceptionally comfortable motorcycle helmet has a wraparound visor and shock-absorbent rubber padding.
这个数目舒适的摩托车头盔有一个概括的面颊和底胶的填充物。
The large curvature of the Earth appearing in the visor reflection is not the true curvature of our spherical Earth, but rather an artifact of the curve of the space helmet.
头盔反射看到的巨大的地球弯曲度并不是我们球形地球真正的弯曲度，而恰恰反映的是太空中头盔弯曲度。
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。
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