XPA是什么意思

XPA

abbr.X-band parametric amplifier X波段参量放大器;X-band power amplifier X波段功率放大器;X-band passive array X波段无源阵列（天线）;extended pattern area (mark) 扩展图形区（标记）（代号）;

例句:

1、

To get the list of documents without a known number of pages, use the XPath expression// Document [ not ( Pages)]/ Name.

要得到未知页数的文档列表，可使用XPath表达式//Document[not（Pages）]/Name。

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2、

I chose a generic object to store information when matching an XPath because I do not want to tie the parser to a given application.

我选择通用对象来存储匹配XPath时的信息，是因为不希望将解析器局限于给定的应用程序。

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3、

The at sign (@) is borrowed from XPath, but the result is the illusion that you are working with the attribute directly as opposed to calling the attribute() method.

@符号是从XPath借过来的，但其结果是，您感觉像是在直接操作属性（与调用attribute（）方法相反）。

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