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Hardness

['hɑːdnəs] or ['hɑrdnɪs]

解釋/意思:

(noun.) the quality of being difficult to do; 'he assigned a series of problems of increasing hardness'; 'the ruggedness of his exams caused half the class to fail'.

(noun.) a quality of water that contains dissolved mineral salts that prevent soap from lathering; 'the costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present'.

(noun.) the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale.

布兰登手打--From WordNet

解釋/意思:

(n.) The quality or state of being hard, literally or figuratively.

(n.) The cohesion of the particles on the surface of a body, determined by its capacity to scratch another, or be itself scratched;-measured among minerals on a scale of which diamond and talc form the extremes.

(n.) The peculiar quality exhibited by water which has mineral salts dissolved in it. Such water forms an insoluble compound with soap, and is hence unfit for washing purposes.

校對:谢尔比

同義詞及近義詞:

n. [1]. Firmness, solidity, compactness, impenetrability.[2]. Difficulty, perplexity.[3]. Scarcity, penury.[4]. Hardship, suffering, tribulation.

杰罗姆錄入

例句/造句/用法:

汉娜錄入

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