dead sign symbol skull bones poison toxic kill die material poisonous Toxic Poisonous clip art 有毒 有毒 风险 有毒有毒剪贴画
Graphic created from the three stages description of amalgam lifespan (p.65). Source: Daunderer M. (2011). Gifte im Alltag. München: C.H. Beck, 3 ed. 银汞合金 科学 教育 牙科银汞合金充填阶段
None 公司业务 人民 风险 Rear view of three businessmen raising their hands at a businesswoman holding a stock certificate
None 公司业务 提出的手 人类的手臂 Side profile of three businessmen raising their hands at a businesswoman holding a stock certificate
sign inkscape symbol signs symbols danger warning hazard explosion risk caution explosive Sign Explosion Risk clip art 登录 爆炸 风险 标志爆炸风险剪贴画
chemical science chemistry lab acid laboratory insurance burn spill acidic alkaline injury liability Acidic Spill clip art 酸性 漏油事件 风险 酸性溢剪贴画
symbol fire flame hazard flammable logo xtremely burn extremely flamable Extremely Flammable clip art 极 易燃 风险 极易燃的剪贴画