柯林斯詞典alkaline /??lk??la?n/ 1. ADJ Something that is alkaline contains an alkali or has a pH value of more than 7. 含堿的; 堿性的 Some soils are actually too alkaline for certain plant life. 有些土壤的堿性，實際上對某些植物的生長是過高的。2. alkalinityN-UNCOUNT A pH test measures the acidity or alkalinity of a substance. pH測騐檢測的是物質(zhì)的酸度或堿度。 返回 alkaline