The required VA ratings of auto-couple transformers is much less than its output power, thus the size and price of the transformer is reduced a lot.
自藕变压器的伏安容量大大小于变压器输出功率，减小了变压器的体积和价格。
A couple of useful options provided by these tools include debugging XPath, auto completion, and searching databases using XPath.
这些工具提供的一些有用的选项包括调试XPath、自动完成和使用XPath搜索数据库。
A couple had been debating the purchase of a new auto for weeks.
一对夫妇为了买一辆新车争论了几个星期。
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