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period 1 element 添加释义

英英释义

Period 1 element

  • abstract: A period 1 element is one of the chemical elements in the first row (or period) of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when chemical behaviour begins to repeat, meaning that elements with similar behaviour fall into the same vertical columns.

以上来源于: WordNet

双语例句

  • The cell type is a simple element that can contain a range of values from 1 to 9 and a period (.) that represents no value.

    单元格类型是一个简单的元素，其中可以包含 1 到 9 的值和点号（.） ，点号表示没有值。

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  • Specifically, you specify the box element must be one of the integers from 1 through 9, or the period.

    我们明确地指定了box元素只能为1 - 9的整数或者为句点。

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