You can tell vi to place a bookmark at a point in a file by pressing the m key followed by another alphabetic character that denotes the bookmark reference.
可以让vi在文件中的特定位置放上书签。方法是按escape键，再按m键，然后输入另一个表示书签引用的字母表字符。
Conversely, when the search engine key words to determine the page, the picture instead of ALT-attribute is a trusted reference point.
反过来讲，当搜索引擎要判断网页的关键词时，图片的ALT -代替属性是一个可信任的参考点。
This article lays its key point in analyzing the advantage and defect of blog, providing some reference for education blog s application to teaching.
本文的重点在于分析了教育博客的优势与缺陷，为教育博客应用于教学提供了参考。
Text analyze key point about construction supervisor of cement concrete road and give reference for construction supervisor job of cement concrete road.
详细分析了水泥混凝土公路施工阶段监理工作要点，为水泥混凝土公路施工监理工作提供参考意见。
The key point to realize the technique is to modulate the detected signal and make it related to the reference signal.
而对被测信号进行调制使其与参考信号相关是实现锁相检测的关键。
The key point to realize the technique is to modulate the detected signal and make it related to the reference signal.
而对被测信号进行调制使其与参考信号相关是实现锁相检测的关键。
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