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2.1ԇ��b�á�ԇ��,��

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2.2ԇ򞷽��

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2.3ԇ�Y��

2.3.1�ؚ��^��ϵ��(sh��)�Ĝy��

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2.3.2�߻��x��

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2.3.4�ؚ��Ӱ�

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2.3.5pHֵ��Ӱ�

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2.3.6�ضȵ�Ӱ�

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2.3.7�߻��

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2.3.8�߻��ԇ�

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