1) round shape with a square in the middle
圜形方孔
2) square holes
方形孔
1.
Concept design and motion simulation for drilling square holes;
方形孔钻削机构的概念设计和运动仿真
3) square punching
方形抽孔
4) square opening and prism
方形轴孔
5) square manhole
方形人孔
6) square aperture
方形孔道
1.
The paper introduced radiation heat transfer speciality of radiant porous body,and analyzed radiation angle coefficient of radiant porous body with square aperture by using numerical differentiation.
介绍了辐射多孔体的辐射传热特性 ,采用微分法对方形孔道辐射多孔体的辐射角系数进行了数值分
2.
Regarding radiant porous body with square apertures as object,two kinds of heat transfer mathematical models are set up,one only considers radiation effect and the other considers both radiation and conduction.
以方形孔道的辐射多孔体为研究对象,建立了考虑辐射作用时以及辐射与传导复合存在时的两种传热数学模型,数值计算分析出孔道内温度分布和定向有效辐射规律,并通过半工业燃烧通道试验加以验证,得到了相一致的结果。
补充资料：白圜
1.星象的一种。谓白光环绕星体。古人以为不祥之兆。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条