chemical substance (化學物質)

chemicals

化學物質

chemicals (化學物質)

化學物質 (chemicals)

toxic chemicals

有毒的化學物質

toxic chemicals (有毒的化學物質)

有毒的化學物質 (toxic chemicals)

toxic chemicals

有毒的化學物質，具有毒性的化學物質

toxic chemicals (有毒的化學物質，具有毒性的化學物質)

有毒的化學物質，具有毒性的化學物質 (toxic chemicals)

chemical substance

化學物質

chemical substance (化學物質)

化學物質 (chemical substance)

chemical substances

化學物質

chemical substances (化學物質)

化學物質 (chemical substances)

chemical substance (化學物質)

A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.

Source (資訊來源):

https://en.wikipedia.org/wiki/Chemical_substance

Info cited on 2016-09-17-WD6 (資訊引用於 中華民國105年9月17日) by 湯偉晉 (WeiJin Tang)