hollow square beam 空心方钢犁梁
cosecant-square beam antenna 余割平方射束天线
beam square 横梁角尺 ; 角尺
square beam of thin wall 方形薄壁梁
hollow selvedge square beam 空心方钢犁梁
solid beam square 实心梁矩尺
They reflect a concentrated beam of light onto the town's central square, creating an area of sunlight roughly 600 square meters.
它们将一束集中的光线反射到城镇的中心广场上，形成面积大约为600平方米的阳光区域。
The rest of the Wilkins Ice Shelf, which totals about 14,500 square kilometers, is holding on by a narrow beam of thin ice.
总面积约在14500平方公里的威尔金斯冰架的其他部分正在支撑着一条狭长的薄冰。
The rest of the Wilkins Ice Shelf, which totals about 14, 500 square kilometers, is holding on by a narrow beam of thin ice.
总面积约在14500平方公里的威尔金斯冰架的其他部分正在支撑着一条狭长的薄冰。
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