These have lenses with a single focal power tuned so that near objects come into focus.
这些镜头具有经过调整的单一焦度,因此可以聚焦近处的物体。
单词 | focal power |
例句 |
原声例句
TED演讲(音频版) 2020年5月合集 These have lenses with a single focal power tuned so that near objects come into focus. 这些镜头具有经过调整的单一焦度,因此可以聚焦近处的物体。 TED演讲(音频版) 2020年5月合集 Today we also have progressive lenses which get rid of the line by smoothly varying the focal power from top to bottom. 今天我们还有渐进镜片,它通过从上到下平滑地改变焦度来摆脱线条。 |
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