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硬度是由一些两价金属阳离子引起的.用英语怎么说？

硬度是由一些两价金属阳离子引起的.

Hardness is caused by divalent metallic cations.

相关词汇
hardness is caused by divalent metallic

hardness

n. 坚硬，<物>硬性，困难，冷酷；

is

vt.& vi. 是（be的三单形式；n. 存在；

caused

人为的；

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

divalent

adj. 二价的；

metallic

adj. 金属的，金属性的，金属制的，含金属的；
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他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
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A distributary overflows its banks.
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We must do away with all manifestations of disunity.
我们必须消除一切不团结的现象.
Let's invite her to the disco — she needs distraction.
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They distain the commonplace life.
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他伤心得讲不出话来。
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他是嘴薄而恶毒, 眼睛多疑.
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这些图片大肆渲染，会让一些比较年轻的读者们惶恐不安。
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“很抱歉打扰您。”韦布温和地说。
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警方说骚乱发生后他们已逮捕了20人。