Safety glasses should be used.

应该采用安全眼镜。

Wear safety glasses when necessary.

必要时要戴上安全眼罩。

Safety glasses, adequate ventilation.

安全玻璃，足够的通风。

Eye protection: Safety glasses recommended.

用来保护眼睛的眼镜。

Wear protective goggles or approved safety glasses.

佩带防护风镜或经许可的安全眼镜。