When using, the robot often running in tow plenty cable, this is very discommodiousness.

使用时机器人往往要拖着大量的电缆运行，很是不方便。

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There is great difference between the data structure of XML and the data storage structure of database, and XML technology is not only unripe, but also discommodiousness.

但由于XML表示数据的结构和数据库存储数据的结构存在很大的差异，这种技术不成熟，而且使用也不方便。

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