semicircles

n．半圆：一个圆的一半
常用释义
n．半圆：一个圆的一半，由圆心到圆周的直径所划分。

扩展信息

半圈
* 半圈（Semicircles）：半圈的圆心至圆环外边缘长度为1.80米，圆心位于罚球线中点。* 罚球线（Free-throw lines）：罚球线 …

例句

It is only recently that researchers have started looking at the strange squiggles, semicircles, lines and zigzags that surround them.

只有到了现在，研究人员才刚刚开始观察石壁上那些奇怪的胡乱书写的文字、半圆图形、线条和锯齿形。

It consists of concentric semicircles of a polymer laid down on a gold film.

由一个同中心的半圆聚合物放置在金制膜层上构成的。

A more familiar symbol, the two semicircles laid one on top of the other, with the upward-arcing one broken where the other crossed it.

又画了一个相似的符号，两个半圆形分别在其他图案的顶部，朝上的圆弧穿过其他图形。

LXZK open type current transformer consists of two semicircles , which can be installed with the cable quickly and uniformly.

LXZK系列开启式零序电流互感器由两个半圆环型组成，可安装在连接好的电缆上，简便快捷，和谐美观。

One dolphin separates from the group and begins swimming back and forth in large semicircles .

一只海豚脱离集体，开始在一个大半圆中来回游动。

The second symbol, with the two separated semicircles, but inverted.

第二个符号，带着两个颠倒的分离半圆形。

开半圆的配置的构造方法

Number of Arrangements of Open Semicircles

开半圆的配置数

The Weights of the Edges in Arrangements of Open Semicircles

开半圆的配置中边的权