echard
名词 n.
英文释义
名词 n.
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The portion of water in a sample of soil that is not available to vegetation.
— The echard of a given habitat is experimentally ascertained by isolating a block of soil by impermeable plates, allowing it to dry slowly and determining its water-content at the time when the plants growing on it are wilting irrecoverably
词形变化
词汇关系
反义词
词源
From Ancient Greek ἔχω (ékhō, “to hold”) + ἄρδω (árdō, “to water, to irrigate”).
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数据来源: Wiktionary