smooth-surface contact angle 光滑面接触角
When sunlight hits water at the same Angle as a satellite's view, smooth areas reflect light like mirrored surfaces while rough regions scatter light and appear darker.
当阳光从卫星拍照的角度照射到水面上时，平滑的水面像镜面一样反射光线，而不平的水面则会散射光线，看上去是黑暗的。
Normal charts in finance reflect the volatility of the market. This manager produced returns which rose at an impossibly smooth 45 - degree Angle.
通常的金融报表都反映出市场的变化无常，但这个经理的报表却显示了令人难以置信的45度角的平稳上升。
During the drop, better have a lower speed of resitting and a smaller wrap Angle, which can have a smooth resitting without fierce impact.
在气门下降段，将气门的落座速度和下降段缓冲包角取小些，使得气门落座平稳，无激烈的冲击现象。
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