Lately, some scholars put forward that the capability embedded into Direct Current component is more than that of AC components.
近来,有学者提出:图像经过DCT 变换后,它的直流分量的感觉容量比交流分量大。 从稳健性的角度,DC 分量最适合用来嵌入水印。
参考来源 - 基于静止图像的数字水印技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Through controlling the vibration amplitude and direct current component of the driving wave for the varifocal mirror, we can obtain the different depth range.
通过控制变焦镜驱动波的振幅和直流成份，可获得不同的深度范围。
The direct current system is an important component of the transformer substation, but its grounding is a common defect.
直流系统是变电站一个重要的组成部分，直流系统接地是常见的缺陷。
Thus, a direct bus current can be detected precisely and an upper harmonics component is inhabited.
由此，高精度地检测直流母线电流，抑制高次谐波成分。
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