For ad hoc one-liners in scripts, use ed noninteractively by piping a group of commands and text to it with echo
对于脚本中的特别单命令行程序，可以使用echo 将一组命令和文本管道传输给ed，从而以非交互式的方式使用它。
Results: The patients with pelvic varicosis showed network like, non echo areas and plexiform or color ball shaped blood flow signals which were not found in control group.
结果：盆腔静脉曲张症患者盆腔内可见网络样无回声区及丛状或“彩球”样彩色血流信号，正常组未见上述改变。
The difference of minimum echo intensity of the right coronary wall in the coronary heart disease group was the biggest.
冠心病病人的右冠状动脉壁最低回声强度与其周围组织的差值最大。
And we can classify and recognize the group targets precisely with high range resolution Radar echo.
而利用高分辨率雷达回波进行目标识别可以对群目标进行精确的目标分类和型号识别等。
The difference of minimum echo intensity of the right coronary wall in each group was compared with the peripheral tissue.
冠心病病人的右冠状动脉壁最低回声强度与其周围组织的差值最大。
The difference of minimum echo intensity of the right coronary wall in each group was compared with the peripheral tissue.
冠心病病人的右冠状动脉壁最低回声强度与其周围组织的差值最大。
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