这个双筒望远镜是昆明众多的光学厂中的一个制造的，由联合光学公司经销出口(链接见下)。

This binocular is manufactured by one of Kunming's numerous optical plants and exported by United-Optics (see link below).

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一家公司计划开发一种原型除草机，它使用带有光学传感器和微处理器的刀片，通过颜色的深浅区别杂草和作物。

A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color.

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这就是光学替代领域的市场正在那些最大的公司中崛起的原因。

It is in this area where a number of new optical alternatives are emerging from some of the biggest firms in the business.

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