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这是非常经济的，具有很高的视觉活动的比率值。
This is very economical, with a high ratio of visual activity to value.
youdao
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输入实测值或为了比率测定输入‘1’。
Typing actual value or "1" in order to measure the ratio of testing.
youdao
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输入实测值或为了比率测定输入‘1’。
Typing actual value or "1" in order to measure the ratio of testing.
youdao