您要查找的是不是：
- Ammonia is a chemical substance. 氨是种化学物质。
- chemical substance index 化学物质索引
- To make(a chemical substance)nonvolatile or solid. 使不挥发，使凝固使(某种化学物质)不挥发或凝固
- A chemical substance used to kill insects. 杀虫剂用于杀虫的一种化学物品
- To make(a chemical substance) nonvolatile or solid. 使不挥发，使凝固使（某种化学物质）不挥发或凝固
- A chemical substance that destroys or inhibits the growth of fungi. 杀真菌剂杀死真菌或抑制其生长的化学物质
- More and more attention is paid to study on the relation between the chemical substance structure and properties with the method of topological index. 应用拓扑指数的方法来研究化学物质的结构与性能之间的关系越来越受到人们的关注。
- A chemical substance used to destroy or inhibit the growth of plants, especially weeds. 灭草剂用来摧毁或抑制植物，尤指杂草的生长的化学物质
- Beware of the commodities, i.e. liquid, gels, chemical substance. 特别注意以下物品：液体，凝胶，化学物品。
- To stupefy or excite, as by the action of a chemical substance such as alcohol. 使喝醉使麻木或使兴奋，通过例如酒精等化学物质的作用
- Celery contains a valuable chemical substance that helps lower blood pressure. 芹菜里含有一种宝贵的能帮助降低血压的化学物质。
- Plants absorb useful chemical substance in order to grow by themselves. 植物吸收有用的化学物质以促进自身的生长。
- Soil consists of various chemical substances. 土壤由种种不同的化学状之所构成。
- A chemical substance,such as acetylcholine or dopamine,that transmits nerve impulses across a synapse. 神经传送体通过神经键传递神经脉冲的化学物质，如碱性有机化合物或多巴胺
- A chemical substance, such as acetylcholine or dopamine, that transmits nerve impulses across a synapse. 神经传送体通过神经键传递神经脉冲的化学物质，如碱性有机化合物或多巴胺
- A chemical substance used to destroy or inhibit the growth of plants,especially weeds. 灭草剂用来摧毁或抑制植物，尤指杂草的生长的化学物质。
- A chemical substance used to destroy or inhibitthe growth of plants, especially weeds. 灭草剂用来摧毁或抑制植物,尤指杂草的生长的化学物质。
- Interference in the physiological action of a chemical substance by another having a similar structure. 对抗作用一种化学物质被另一种具有类似结构的化学物质进行的生理行为干涉
- European INventory of Existing Commercial chemical Substances. 欧洲现有商用化学物质目录。
- Many chemical substances may be held in solution in water. 许多的化学物质可以溶于水中。
