- 二(number two; two horizontal strokes)
Two parallel horizontal strokes symbolize the number two.
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manganese(iv) oxide
Manganese dioxide is an important industrial material.
manganese(iv) oxide
Manganese dioxide is an important industrial material.
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.
manganese(iv) oxide
manganese(iv) oxide
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