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Some bigger aircraft also can extend slats within the front or leading edges with the wings to increase lift at minimal speeds.^ 二氧化碳雖不助燃,但活性比碳大的金屬(如鈉、鎂、钾)會和二氧化碳進行氧化還原反應,置換二氧化碳中的碳原子。 ^ 注意二氧化碳本身并无毒性Aerodynamic forces also