禁止吸烟NO buring禁止烟火NO kindling禁止带火种No naying inflammable thing禁止放易燃物Caution,danger注意安全Caution,fire当心火灾Caution,explosion当心爆炸Caution,gas当心瓦斯Danger!electric shock当心触电Caution,mechanical injurey当心机械伤人Must wear protective goggles必须戴防护眼镜Must wear dustproof mask必须戴防尘口罩Must wear protective gloves必须戴防护手套Must wear ear protector必须戴护耳器