One year, to get the study groups just-so, Ms. DeGraca laid out index CARDS with students' names and basic facts on her living room floor, mixing and matching until the groups seem balanced.

有一年，为了实现精确分组，德格拉卡在自家客厅地板上把标有学员名字及基本概况的索引卡摊了一地，试验了各种排列组合，最终使所有人员得到了均衡的分配。

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Also, regular expressions are ill-suited to advanced text processing tasks such as matching balanced, nested tags.

另外，正则表达式不适合于高级的文本处理任务，如匹配平衡的、嵌套的标签。

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Balanced micro-strip line is utilized as feed line, printed dipole is adopted as radiation element, and a matching network is employed for tuning the input impedance of the antenna.

该天线采用平衡微带线作馈线，以印刷振子作为辐射单元，末端采用匹配电路对其输入阻抗进行匹配。

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