With the blocking idea,the watermark is embedded into the Fourier semicircle region.
该算法基于分块思想将水印嵌入到傅立叶频域的半圆形区域。
double radius button head snap
双半径半圆头铆钉窝子
The half dome over an apse.
穹内半圆顶教堂后部的半圆形穹顶
dangerous sector
危险半圆(北半球危险半圆在风暴轨迹的右边
Woodruff keys--Types and dimensions
GB/T1099-1979半圆键型式尺寸
a semicircle of chairs
排列成半圆形的椅子
(used of the moon) more than half full.
（用来指月亮）大于半圆。
Round head rivets
GB/T867-1986半圆头铆钉
Round head rivets--Black
GB/T863.1-1986半圆头铆钉(粗制)
Cup head nib bolts
GB/T13-1988半圆头带榫螺栓
Cup head square neck bolts
GB/T12-1988半圆头方颈螺栓
strong oval head square neck bolt
加强半圆头方颈螺栓
a theater that offers semicircular seating.
提供半圆形坐椅的剧院
plug-and-feather method
半圆铁棒夹楔劈石法
Stand in a horseshoe facing me.
面向我排成半圆形站着.
Semicircular.Used of bow windows.
半圆的。用于弓形窗
They are sitting in a semicircle.
他们围成半圆形坐着。
precision semi-automatic universal cylindrical grinder
精密半自动万能圆磨床
reentrant cylindrical cavity
圆柱形凹腔, 半同轴空腔