basic substance 예문

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1. :: : Silicon dioxide is the basic substance of glass.
2. Clearly, the'apeiron'was some sort of basic substance.
3. It is a basic substance with fluorescent and luminescent properties.
4. Disappearing inks typically rely on the chemical reaction between thymolphthalein and a basic substance such as sodium hydroxide.
5. A third possibility is to accept the existence of a basic substance that is neither physical nor mental.