空气·泪层的内面为一强折射层，较小的曲率变化就可以引起较大的屈光能力变化。
The air-tear fl1m lnterface isa powerful refractive surface. Small changes in the curvature can induce Iarge sh1fts in the refractive power.
二维复杂层状介质地震折射波正演方法，该方法可适用于折射面起伏不大、低速层和折射层速度变化不大的情况。
Forward modeling method of refraction first-break in lateral varying velocity media. For layered media, a new forward modeling method of refraction is presented.
尽管这向天文学家证明了金星被一层厚厚的气体所包围，这层气体使太阳光在金星周围发生折射，但这两种效应都使精确的时间控制成为不可能。
While this showed astronomers that Venus was surrounded by a thick layer of gases refracting sunlight around it, both effects made it impossible to obtain accurate timings.
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