英语单词：calcareous

中文含义：含钙的，钙质的

英语词性：adjective

美式音标： /kælˈkɛriəs/

同义词：calcified, chalky, ossified, petrified

易混淆单词：carbonaceous, carnivorous, gracious

双语例句：

1. The source of carbon dioxide in soil was mainly the decomposition of underground organic matter, CO2 produced by root respiration, microbial respiration, and dissolution of calcareous rocks.

土壤中二氧化碳的来源主要是地下有机物的分解，根呼吸、微生物呼吸产生的CO2和含钙岩石的溶解。

2. The results showed that the calcareous soils had significantly higher pH value, exchangeable calcium, and exchangeable magnesium than the non-calcareous soils.

结果表明，含钙土壤的pH值、交换性钙离子和交换性镁离子明显高于非钙土壤。