It has two main USES, which are both easy to identify.

分号的两个主要用途，都很容易识别。

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Mouse support has two main USES: coordinate tracking, and zooming.

鼠标支持有两个主要用途：坐标跟踪和缩放。

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One of the main USES of the energy is to provide user with electricity, heat (bath-water) and cool.

能源的主要用途之一就是给用户提供电力、采暖(卫生热水)和制冷等。

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But whilst voice and text services are the main uses for the handsets, comparatively few people are downloading and playing games with them.

BBC: NEWS | Technology | Uphill struggle for mobile gaming

The researchers cite conflict resolution and discussion as the main uses for their device, but woe to the National Institute of Advanced Industrial Science and Technology commencement speaker this year.

FORBES: The Japanese Speech Jamming Gun

Main uses of that spare time: leisure and sleep.

FORBES: Why Learn When You Can Sleep?