- 二(number two; two horizontal strokes)
Two parallel horizontal strokes symbolize the number two.
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silicon dioxide (SiO2)
Silicon dioxide is a common compound.
silicon dioxide (SiO2)
Silicon dioxide is a common compound.
Two parallel horizontal strokes symbolize the number two.
Gas with a tone like 'dương' is oxygen—the gas that sustains all living things.
A person standing upright beside a person bending down shows how shapes transform and change.
Two parallel horizontal strokes symbolize the number two.
Gas with a tone like 'dương' is oxygen—the gas that sustains all living things.
A person standing upright beside a person bending down shows how shapes transform and change.
silicon dioxide (SiO2)
silicon dioxide (SiO2)
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