柯林斯英汉双解大词典
divalent /daɪˈveɪlənt, ˈdaɪˌveɪ-/
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1.
ADJ having a valency of two 二价的 [chem]
双语例句原声例句
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Hardness is caused by divalent metallic cations.
硬度是由一些两价金属阳离子引起的。
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Heats of hydration of divalent transition metal cations.
元素离子水化热等。
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The possibilities of formation of complex compound between divalent iodates have been studied.
对二价碘酸盐之间形成复盐的可能性也进行了探讨。
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It's 109 . 5 is what we would expect for methane because it's tetravalent, but here we're just seeing something that's divalent, and they're both in p orbitals that are perpendicular to each other.
因为甲烷是四价的，我们预测是109。,但这里我们，看到的是二价的，它们都在。
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So this should immediately look like a problem because we know, in fact, that methane is tetravalent, and this is telling us it's only divalent.
显然这看起来是一个问题,因为我们知道实际上，甲烷是四价的，而这告诉我们它仅仅是二价的。
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