Steel equal angles hot rolled 等边角铁
equal angles with round edges 圆角等边角钢
equal angles with sharp edges 尖角等边角钢
equal leg angles 等边角钢
Hot-Rolled Steel Equal-Leg Angles 热轧等边角钢标准
property of equal central angles 相等圆心角的性质
Similar triangles have equal angles.
相似三角形有相等的角。
Similar triangles have equal angles.
三角形有相等的角。
Three plane waves with three equal angles formed by each two wave normal lines are recorded on hologram by three exposures.
采用三次曝光在全息图上依次记录下三个两两波法线夹角相等的平面波。
If these bonds were all completely of equal distance apart, whether is was a lone pair or bonding electrons, 5° the angles would be 109 . 5 degrees.
如果不管它是孤对,还是成键,它们等距分开的话,键角是109。
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