对于方形孔， 当圆角半径为1/14方形孔边长时，对缓和应力集中系数最有利。
It is most advantageous to relaxed SCF when the comer radius equal to 1/14 side length of square hole.
这些方形孔扮演了隔膜的角色，在热带气候下获得直接的自然采光，同时提供空气的过滤。
The squares play a role as a membrane to gain the indirect natural light in a tropical climate and provide air filtration.
伦敦生活图片。一名旅客注视特拉法尔广场的名胜从一辆伦敦出租车的方形孔，这些天选择昂贵的运输工具。
A passenger watches the sights of Trafalgar Square pass by from a London cab, these days a pricey transportation choice.
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