It's prohibited to carry any hazardous materials.

禁止携带危险物品。

Records fo hazardous materials disposition shall be maintained.

有害物质的处理记录需要保留。

Don't experiment with potentially hazardous materials on others.

不要在他人身上用潜在的危险材料做实验。

Safely handle hazardous materials and increase your storage area.

安全处理火烧性材料和增加您的储存量。

Gas, liquids, and aerosols are three states of hazardous materials.

气体，液体和气溶胶三种有害物质的状态。