tonal value

用法例句

Focal plane:The plane where light entering a lens forms a sharp image.

焦面:光线经过镜头后形成清晰影象的平面。

The distinctness or clarity of an image rendered by an optical system.

影象的清晰度因使用光学调节系统而形成的分明的或清晰的图象

picture with high definition in the corners

四角清晰度高的图象

Basic sharp image

基本清晰影像(摄影)

The physical images were inscribed in her mind so clearly that they might have been razoredged photographs of his.

那有血有肉的形象铭刻在她脑海中,清晰得一如她边缘整齐的摄影。

The photograph showed a distinct image.

照片显出了明晰的影象。

of visual imagery of almost photographic accuracy.

象照片般清晰精确的视觉印象。

a distinct flavor; a distinct odor of turpentine; a distinct outline; the ship appeared as a distinct silhouette; distinct fingerprints.

清晰易辨的气味；明显的松节油的气味；清晰的轮廓；轮船显出清晰的侧影；清晰的指纹。

this phenomenon, known as diffraction,results in a loss of image clarity, Therefore ,using very small aperture would lead to lose of quality.

这个现象，称为衍射。它影响影像的清晰程度。所以，用极细光圈摄影会使品质下降。

The images were clear, and real, and present.

形象十分清晰、真实而且就在眼前。

We get good color=# cc0066> vision but poor sound on this set.

这台电视机图象清晰,但声音不好.

To adjust(a lens, for example) to produce a clear image.

调焦调整(如透镜)而得到清晰图象

a light clear metallic sound as of a small bell.

象小铃铛发出的轻微但清晰的金属声。

I had some pretty accurate ideas about the design of a bomb.

我对炸弹的图案还有相当清晰的印象。

The shorter the waves are, the more distinct will be the magnified image.

波长越短，放大的物象越清晰。

You can't get a clear picture on this set.

这台电视机接收不到清晰的图象。

She dozed, and his presence became more distinct.

她假寐了，他的形象变得更加清晰。

It was a strong, clean vision.

这是个强烈而清晰的幻象。