prism-angle error 棱角误差
prism angle of deflection 劈尖偏向角
angle prism 角棱镜
roof angle prism 脊角棱镜
roof-angle prism 脊角棱镜
bend-angle prism 转角棱镜
Right-angle prism 直角棱镜
small-angle prism 小角棱镜
right angle prism [光] 直角棱镜
And then he just takes that narrow column of light and he admits it to a prism. And what the prism does is takes a tiny, tiny difference in wavelength and refracts it through a different angle.
他只取了那个窄光柱,然后把它对准一个棱镜,棱镜所做的就是,测量出波长的细微差别,然后从不同的角度测定它的折射度。
And if the prism is of sufficient dimension that angle can be magnified.
如果这个棱镜有多个面,可以把角度也放大。
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