When d is large in comparison to lambda the obstacles cast shadows.
当距离大于λ,屏障也会投下阴影。
麻省理工公开课 - 固态化学导论课程节选
So, since the speed of light equals lambda nu, we can say that momentum is equal to h divided by lambda.
所以,既然光速等于λ乘以υ,我们可以得到动量等于h除以λ
麻省理工公开课 - 化学原理课程节选
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