名词
中文翻译：变焦镜头双筒望远镜
同义词：
['varifocal telescope', 'variable focal length telescope', 'varifocal binocular']
例句：
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1. Thevarifocal lens binocular allows for a wide field of view and is perfect for hiking in the mountains.
这种变焦镜头双筒望远镜视野广阔，非常适合在山区徒步时使用。
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2.The varifocal lens binocular is an essential tool for birdwatchers who want to spot migratory birds from a distance.
对于想要远距离观察候鸟的观鸟者来说，这种变焦镜头双筒望远镜是必备的工具。
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3.In the field of astronomy, varifocal lens binoculars are used to observe stars and planets with greater clarity and detail.
在天文学领域，变焦镜头双筒望远镜被用来观察恒星和行星，以获得更清晰和详细的图像。