该种模型既保留了限制容差关系扩充模型的优点，又丢弃了容差关系、相似关系和限制容差关系扩充模型的不足。

Not only does the extension reserve the advantage of limited tolerance relation, but also it deserts the disadvantage of tolerance relation, similarity relation and limited tolerance relation.

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因此，GPS差分协议和差分电文的算法是差分系统必须考虑的两个问题。

So the DGPS data formats and base station algorithm are the two important problems of DGPS system.

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该方法综合了现有方案的长处，可避免单一参数(频率差、相角差或电压差)不满足就闭锁快切的弊端。

It integrates advantages of present schemes and avoids the unreasonable blocking for single unqualified parameter, such as the frequency difference, the phase difference or the voltage difference.

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Whereas, 27% of whites are reading at a low level, 22% of Asian-Pacific kids are reading at low level.

也处于低水平，然而，27%的白人孩子阅读能力很差，而22%亚太地区的孩子阅读能力很差。

麻省理工公开课 - 媒体、教育、市场课程节选

And once you... when you're having that bad of a season, it's really hard to get everyone passionate about it,

所以一旦赛季取得很差的成绩，就很难保持球队的激情，

足球部队长的领导力 - SpeakingMax英语口语达人

I have a chart here, which I'll make available to, with a listing of nations with worse literacy record in the world.

现在我手中有一张表格，这个我会公开给大家，这里列出了世界上,具有较差文化素养的一些国家。

麻省理工公开课 - 媒体、教育、市场课程节选