Face shields should have crown and chin protection and wrap around the face to the point of the ear.
防护面屏的设计应该有对头顶部和下巴的保护，面屏侧面应延伸至耳朵的部位。
Visual examination detected blood spatter contamination in 50.5% (303/600) of the face shields, whereas leucomalachite green staining detected blood contamination in 66.0% (396/600).
肉眼可见的污染见于50.5%（303/600）面罩，而隐色孔雀绿染色可在66.0%（396/600）的面罩中检测到。
They were met by black-clad police with helmets, face masks and small round riot shields.
防暴警察，全副武装，青衣面甲，手执圆盾。
In addition to safety glasses with side shields or goggles, a face shield helps prevent flying debris from striking your face.
除了带侧边的安全防护眼镜或护目镜之外，面罩也可以帮助防止飞溅的碎片击打到脸部。
Face stability is key point of tunnel shields excavation, Which influenced circumjacent environment.
开挖面的稳定是盾构施工技术的关键问题，直接影响到周边环境。
Elbow and left leg, double cuff wear leather armor, armed with shields and swords. Such fighters also wore a helmet and face helmets.
左腿、双肘和双腕穿皮制盔甲，手持大盾牌和剑。这类角斗士还戴着头盔和面盔。
The results of the model tests were presented with particular emphasis on the balancing mechanism of slurry shields, the development of settlement at the excavating face and the limit slurry pressure.
试验结果表明，泥水平衡盾构开挖面导致的地表沉降很大程度上取决于开挖过程中泥舱压力的浮动范围。
The results of the model tests were presented with particular emphasis on the balancing mechanism of slurry shields, the development of settlement at the excavating face and the limit slurry pressure.
试验结果表明，泥水平衡盾构开挖面导致的地表沉降很大程度上取决于开挖过程中泥舱压力的浮动范围。
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