碱性程度；碱度水平。
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碱性程度；碱度水平。；碱性程度；碱度水平。
The degree or level to which a solution or substance is alkaline; a measure of alkalinity.
The alkaline level of the aquarium water should be tested regularly.
应定期测试鱼缸水的碱性程度。
碱性程度；碱度水平。
The degree or level to which a solution or substance is alkaline; a measure of alkalinity.
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