n.折射；折光
refractions───n.折射；折光
retraction───n.撤回，撤销；收回
retroaction───n.反动；反作用；溯及既往
arefaction───除湿；干燥
detraction───n.诽谤；减损
effraction───n.侵入；闯入
fraction───n.分数；部分；小部分；稍微
infraction───n.犯规，违法行为；（对法律、协定的）违背，违犯
reaction───n.反应，感应；反动，复古；反作用
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.───误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
The Chinese also launched weather balloons near their theodolites to measure atmospheric temperature and pressure changes to better estimate refraction errors.───中国还在经纬仪附近发射了气象气球来测量大气温度和压力变化，以更好地估计折射误差。
What would a negative index of refraction look like?───折射率是负的,会发生什么事情?
Refraction is often applied as a reconnaissance tool in newly explored areas.───折射波法在新的勘探地区，通常都作为一种普查手段。
Her work is often minimal, impinging on us often through the use of light, its reflection and refraction, to evoke feelings of wonder.───她的作品通常极其微小，通过运用光的反射和折射对观众产生影响，激发好奇之感。
An appearance of seismic data as a diffraction, reflection, refraction or other similar feature produced by an arrival of seismic energy.───在地震剖面上，由地震能量产生的绕射、反射、折射或其他相似特征的地震数据轨迹。
Mirage is a surface heated air generated by refraction, can be reflected to the front of the distant scene.───是地表空气被加热后产生的折射现象，可以将远处的景物反射到眼前。
Creating refraction of what you see through the glass on a separate layer keeps your workflow clean.───创建折射你通过一个单独的层来制作，这样你的工作流程将保持清晰。
As a ray of light passes near the earth, it must cut through the atmosphere, which might bend the ray through the refraction of light.───作为光辐射通过接近地球时，它必须穿过大气层，它可能通过折射光而导致光线弯曲。