名词
中文翻译：光学管长度
同义词：
['optical tube length', 'optical tube length', 'optical tube length']
例句：
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1. The new camera has a longer optical tube length than the old one.
这款新相机的光学管长度比旧款长。
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2.The optical tube length is crucial for the quality of the image.
光学管长度对于图像质量至关重要。
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3. The manufacturer claims that the optical tube length has been increased to improve the performance.
制造商声称，为了提高性能，已经增加了光学管长度。