双语例句原声例句
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文中利用射影几何中射线比的特殊性质，解决了透视灭点在图板外的透视图画法。
According to the nature of projective scale, it has solved the problem of drawing a cars perspective when perspective vanishing point is out of the drafting board.
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听诊器比 X 射线、圆珠笔、《大众科学》以及你医生诊所里绝大部分物件还要古老。
The stethoscope is older than the x-ray, the ballpoint pen, Popular Science and pretty much everything else in your doctor's office.
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穿浅色衣服：深色衣服会吸收太阳射线，浅色和白色衣服能够将光和热反射出去，因此深色衣服比浅、白色衣服的温度高。
Wear light colors: Darker colors will absorb the sun's rays and be warmer than light or white clothing, which reflects light and heat.
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So you know that x-rays are higher frequency than UV light, for example, that means it's also higher energy than UV light, and if you think back to our photoelectric effect experiments, do you remember what type of light we were usually using for those? Does anyone remember?
你们知道，X，射线的频率比紫外光高，这意味着，它的能量也比紫外光要高，那么，请大家回想一下我们的光电效应实验，大家还记得当时我们用的是什么光源吗？,有人记得吗？
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