In aprotic acids, it is some other electron-deficient element.
在无质子的酸中，它是另一种缺电子元素。
Boron, the prototypical electron-deficient element in the periodic table, is well-known for multicenter bonds.
硼作为周期表中典型的缺电子元素，易于形成多中心离域键。
When the soil is deficient in some particular element and where there are no others to substitute, the plants will grow to maturity bearing only a fraction of that mineral.
当土壤缺乏某种特殊元素同时找不到替代物时，这些植物将生长成熟但是只有多少分之一的这种元素。
Iron is an indispensable trace element which is easily deficient in human body.
铁是人体必需的和易缺乏的微量元素。
Iron is an indispensable trace element which is easily deficient in human body.
铁是人体必需的和易缺乏的微量元素。
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