қаттылық (қаттылық шкаласы)

қаттылық (қаттылық шкаласы)

The ability of a stone or mineral to resist scratching. Hardness is measured from 1-10, 10 (diamonds) being the hardest.

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行业/领域：珠宝
类别普通珠宝
Company: Kay Jewelers
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қаттылық шкаласы

珠宝; 普通珠宝

The scale used to measure the degree to which a stone or mineral is resistant to scratches. Hardness is measured from 1-10, 10 (diamonds) being the hardest.

карбонаттық қаттылық

化学; 普通化学

Water hardness due to the presence of calcium and magnesium carbonates and bicarbonates. The "noncarbonate hardness" is due mostly to calcium and magnesium sulfates, chlorides, ...

уақытша қаттылық

化学; 普通化学

The component of total water hardness that can be removed by boiling the water. Ca(HCO3)2 and Mg(HCO3)2_ are responsible for temporary hardness.

қаттылық сынауы

化学; 分析化学

A test to determine the calcium and magnesium content of water.

тұрақты қаттылық

化学; 普通化学

Water hardness that remains after boiling the water, mainly due to dissolved calcium sulfate. Chlorides also contribute to permanent hardness.

эко-шик

婚礼; 外套及夹克; 时装秀; 雨衣; 衬衫

Environmentally-friendly and ethical design that does not sacrifice quality or style. Both 'green' and stylish. A combination of trendiness and environment.

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