The handle (1) is a semi-circular ring or an arc.

所述的手柄（1）设置为半圆环或者 设置为弧形边。

The method of counting for circular ring objects in frequency domain is proposed.

研究了用频域法实现圆环形目标物计数的方法。

Its shape was obtained by installing a circular ring at the confluence point of two conical revolutions.

在两个圆锥形旋转的交汇点安装一个圆环就构成了楼梯整体的基本形状。

The cylindrical shell, reinforced with non-uniform circular ring-frames, is a new structure of submersible pressure hulls.

本文应用能量法推导了一种新型的潜水器耐压壳结构——非匀加肋圆柱壳总失稳压力的计算公式。

But the arithmetic product operation is needed to determine a pixel belonging to which circular ring, which consumes much time.

但由于确定各像素点属于哪一个圆环需要进行复杂的乘积运算，耗费了大量时间。