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| Chinese | English |
| 不溶解性物质 | insoluble substance Substance incapable of forming a solution, especially in water (不能溶于溶液的物质，特别是指不溶于水。) |
| 功能性物质 | functional substance A substance from the point of view of its function or purpose, for example a painting agent or a preserving substance (从功能或目的角度出发的有用的物质。例如涂料或储藏物。) |
| 化学性质 | chemical property Properties of a substance depending on the arrangement of the atoms in the molecule, e.g. bio-availability, degradability, persistence, etc. (基于原子在分子中排列的一种物质属性，例如生物可利用性、可降解性、持续性等。) |
| 微粒物质特性试验器 | particle material properties tester |
| 挥发性物质 | volatile substance A substance capable of readily changing from a solid or liquid form to a vapour; having a high vapour pressure and a low boiling point (一种容易从固体或液体转变为气体的物质；具有高蒸汽压力和低的沸点。) |
| 放射性物质 | radioactive substance Any substance that contains one or more radionuclides of which the activity or the concentration cannot be disregarded as far as radiation protection is concerned (包含一到多种放射性核素的物质。这种放射性核素的活性和浓度是辐射保护时要注意的。) |
| 放射性物质滴落 | trickle of radioactive material |
| 毒性物质 | environmentally harmful or toxic substance A chemical or mixture that may present a risk or injury to health or the environment (可能对健康或环境造成风险或伤害的一种化学品或混合物。) |
| 毒性物质 | toxic substance (可能对健康或环境造成风险或伤害的一种化学品或混合物。) |
| 毒性物质的拮抗作用 | antagonistic effect of toxic substances |
| 美国毒性物质管理法案 | Toxic Substance Control Act |
| 空中毒性物质和有机物研究 | airborne toxic element and organic substances study |