momocular
... monocrystalsilicon单晶硅 monocular单眼的，单目镜的 monocularearmicroscope单管窥耳显微镜 ...
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所述的观测镜是单筒目视镜，目镜用凹透镜制成，镜筒内部设有视距增长装置。
The observation lens is the single-tube visual lens, eyeglass is made of a concave lens, and the inner part of a lens tube is provided with a visual distance increasing device.
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