You are this caterpillar now;

你们现在就是这只毛毛虫；

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The caterpillars grow. This caterpillar is big and fat.

这毛虫渐渐成长。这个毛虫是大的和肥的。

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This caterpillar track mobile robot use differential drive structure, which makes it easier than tradition method to carry out steering control.

文中所设计的履带式移动机器人采用差动式驱动结构，实验证明，比传统的带转向轮的移动机器人更容易实现其转向控制。

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Earlier this month Caterpillar completed acquisition of Bucyrus, which is a major mining equipment manufacturer.

FORBES: Caterpillar Could Crawl To $116 With Earnings on Friday

This impacted Caterpillar and other companies such as Komatsu and Sany Heavy that operate in the Chinese construction industry.

FORBES: Caterpillar's Stock Digs Up Gains On China's New Stimulus

This will lead Caterpillar to increase its market share in machinery sales and raise its sales and revenue outlook for 2011.

FORBES: Caterpillar Could Crawl To $116 With Earnings on Friday