Other expression · CEFR B2
pure substance
other_expression
具有恒定化学成分和特性、仅由一种类型粒子(如元素或化合物)组成的物质
- 1.
a material that has a constant chemical composition and characteristic properties, consisting of only one type of particle (e.g., an element or compound)
具有恒定化学成分和特性、仅由一种类型粒子(如元素或化合物)组成的物质
In use
Water is a pure substance composed of hydrogen and oxygen.
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