Each small re-enteringAngle of the house was deliberately thought out.
每个小再次进入房子的角度故意想出来的。
2
In natural materials, light waves entering at an Angle always bend to plunge more steeply into the material-the hallmark of a refractive index greater than 1.
在自然物质中，以一定角度进入的光波，进入物质后的角度更小——标志着折射率大于1。
3
Furthermore, hand fingers are prevented from entering an arc-shaped groove formed in a disk used to adjust the Angle of the held device; otherwise, the fingers would be injured.