This is a chemical change, not a physical one.
这是一个化学变化，而不是物理变化。
This change of state is a physical and not a chemical one.
这种状态的变化是物理变化而不是化学变化。
Nuclear reaction is a chemical change or a physical one?
核反应是化学反应还是物理反应。
This change of state is a physical change and not a chemical one.
这种状态变化是物理变化，而不是化学变化。
This change of state is a physical change and not a chemical one.
这种状态的变化是物理变化，而不是化学变化。
Is this a chemical change or a physical change when wood becomes desks?
木材变成桌子是物理变化还是化学变化？
Is this a chemical change or a physical change when wood becomes desks?
木材变成桌子是物理变化还是化学变化？
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