The invention improves an aeration rotary brush for water treatment, which is characterized in that a rotary brush blade is of a curve arc shape.

本发明是对水处理用曝气转刷的改进，其特征是转刷叶片呈弯曲弧形。

youdao

Actually, maybe you want to say that the arc length increases and then decreases along the curve.

也许你会说，弧长在曲线上增长了，又减少了。

youdao

Then you know that it will rarely travel in a straight path. It will travel, instead, in some kind of arc, or curve.

本句翻译：那么，你就会知道小汽车几乎很少顺着直线跑，而是以弧线或者曲线的方式前行。

youdao

Yes, it feels good in the hand, owed in part to that matte plastic back and subtle arc S-like curve, but the materials feel cheap.

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The arc is an exponential curve.

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To believe that is to believe that the arc of human evolution suddenly jumped the curve in the 1980s, producing a race of 300-pound men able to leap tall buildings and run the 40-yard dash like a bullet.

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