| 单词 | 半圆 |
| 释义 | 半圆 bànyuánsemicircle半圆【数】semicircle半圆 bàn yuán semi-circle 半圆壁龛 {建} apse; 半圆扁钢 flat-round steel; feather edged half-round steel; 半圆材 half-round of timber; 半圆测角仪 semicircumferentor; 半圆锉 half-round file; pitsaw file; 半圆分度器 half-circle protractor; 半圆拱 round arch; full-center arch; 半圆键 woodruff key; 半圆键槽铣刀 woodruff key seat cutter; 半圆（式）露天椅 exedra; 半圆明槽排水沟 channel pipe; 半圆木锉 half-round wood rasp; 半圆偏转 semicircular deviation; 半圆球壳 bullet; 半圆穹顶 full-center calotte; 半圆饰 astragal; 半圆筒式剥皮器 semidrum; 半圆屋顶 hemidome; 半圆线脚 nosing; astragal; 半圆旋切 half-round cut; back cut; stay-log cutting; 半圆油石 half-round oil stone; 半圆凿 firmer gouge; gouge; half-round chisel; 半圆凿穴 gouge hole; 半圆周 semi-circumference; 半圆柱 half round post; 半圆状物 semicirque; 半圆锥状喀斯特 (德) Halbkugelkarst半圆[bàn yuán]1.圆的直径的两个端点把圆周分成两条弧，每一条弧叫做半圆 semicircle; half circles formed by the diameter cutting the circumference in two 2.半圆（弧）和直径所围成的平面 surface between the boundary of a semicircle and the diameter半圆a.semiround半圆的dimidiate【生】对开的，半的；(菌盖等)半圆的round弧形的，半圆的；半球形的compass(窗等)弧形的；半圆的n.semicircle半圆，半圆弧；半圆形(物)hemicycle半圆；半圆形半圆1. a semicircle半圆semi-circle半圆semicircle半圆hemicycle双向☞半圆--半圈半圆semicircle |
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