那天早晨波莉离开家的时候，整个城市就已笼罩在一片灰雾中了。
When Polly left home that morning, the city was already covered in a grey mist.
浓浓的灰雾顺着河水漂移，笼罩着密集又门窗紧闭的建筑和污秽的泥路。
The thick pearl-grey mist drifting off the river hung over the shuttered, close-packed buildings and the muddy, mucky lanes.
分析了彩色正片的感光度、灰雾度和灰差度等特性；
This article analyzes such Characteristics as sensitivity, fog density and contrast of the colour positive.
表面吸附足量的防灰雾剂后，晶体表面突起不明显。
When the antifoggant was adsorbed on the surface of the crystal, few protrusions were found.
我们在分界面上都看到一层灰雾，因为分子正在重新混合。
We see a grey smear at the interface, because the molecules are mixing again .
结果表明，该化合物对抑制胶片贮存中灰雾增长和感光度的变化有明显作用。
It showed evident effects of reducing fog growth and speed change on storage of the photographic material.
本文用电子显微镜方法研究了亚硫酸钠溶解作用对显影灰雾形成过程的影响。
The solution effect of sulphite in the process of developer fog formation was Investigated by electron microscopy.
用此法合成的产物应用于配制医用和工业射线片冲洗药液，可获得正常的防灰雾效果。
The product prepared with this method can perform normal anti-fogging effect during its use for preparing solutions aimed at processing medical and industrial radiographic films.
研究表明：添加了稳定剂和防灰雾剂的溴碘化银t -颗粒乳剂微晶体的电性能与其防灰雾性能具有较好的相关性。
There was a close relationship between the electric property of silver bromide iodide T-grain emulsion added with stabilizer and antifoggant and anti fog property of the emulsion, I.
实验表明，在未经光照的卤化银乳剂微晶体中存在着一定量的自由电子和空穴，这些因素为灰雾中心的形成提供了必要的条件。
As proved by the experiments, a number of free electrons and holes are existed in the unexposed silver halide emulsion micro-crystals. These factors are all essential to the fog center formation.
实验表明，在未经光照的卤化银乳剂微晶体中存在着一定量的自由电子和空穴，这些因素为灰雾中心的形成提供了必要的条件。
As proved by the experiments, a number of free electrons and holes are existed in the unexposed silver halide emulsion micro-crystals. These factors are all essential to the fog center formation.
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