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汉语拼音：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。

2.半圆（弧）和直径所围成的平面。

• A similar rocky protrusion was noticed in the north apse.

  在北侧半圆壁龛另有一块相似的石头.

• A small, circular or crescent - shaped opening in a vaulted roof.

  半圆壁,''.'弧形'. ''窗在高高的屋顶上的小的, 圆的或新月形的开口.

• The apron surrounding the high jump pit is a 15 - meter semicircle.

  跳高处的周围是直径为15米的半圆区域.

• An angle in a semicircle is a right angle.

  半圆所对的圆周角是直角.

• The semicircular jiao zi was about five centimeters long.

  那半圆的饺子大概五公分长.

• This system does not require the use of a woodruff key.

  这个系统并不需要使用一种半圆键.

• I can't find my protractor.

  我找不到我的半圆仪了.

• The semi - circle stage was nothing short of grand.

  半圆型的舞台非常豪华.

• Please sit in a semi - circle.

  请坐成半圆.快集合,请坐下.

• You type the different characters by sliding the domes to create letters and numbers.

  你靠移动半圆来输入不同的字符以打出字母和数字.

• I asked my student to sit in a semicircle to listen to the story.

  我让我的学生们围成半圆坐着听故事.

• Paint half circles of yellow around the main circle . Don't strive for full coverage.

  在大圆周围画禁止词语的半圆. 不用完全与大圆切合.

• In the left side, beginning with the apse, Argentina, Brasil, Chile and Mexico are represented.

  在左侧, 从半圆壁龛起, 有阿根廷 、 巴西 、 智利和墨西哥的标志.

• The half - pipe jacket vessel especially those made of stain - less steel, aluminium should be adopted.

  尤其是在不锈钢 、 铝、镍等贵重金属的夹套容器的设计中,应采用半圆管夹套,以减少设备成本.

• Quite by chance , an apse and some mosaic fragments were brought to light in 1891.

  1891年有些半圆壁龛的残片被发现.