This article firstly describes diffraction contrast and similar electron diffraction,then introduces present status of electron microscope and some notices in the observing process of dark field image,finally analyzes effective hollow light cone illumination dark field image of nanometer multiphase metallic structure and its characteristics.
最后,对分析纳米多相结构的有效空心光锥照明暗场像及其特征,作一介绍。
The annular lens dark field vertical illumination system has been more and more applied in special microscopes.
环形透镜暗场落射照明系统越来越多被应用在特型显微镜上。
Detecting latent fingerprint with combination of dark-field illumination and monochrome photography;
暗视场照明与分色照相配合显现指印
light and shade contrast
明暗反衬，明暗对照
The field of view, dark in the absence of the crystal, becomes light when the crystal is inserted.
没有晶体时，视场是暗的；而晶体插入时，视场就转为明亮。
dark field microscope
暗视野显微镜，暗视场显微镜
dark field microscopy
暗视野显微术，暗视场显微术
Experience of Visual Harmony--The Landscape Lighting of Piazza del Campidoglio in Rome;
和谐的视觉体验——罗马坎皮多利奥广场景观照明
Contrast: The brightness difference between the light and th dark tones of original or image.Also used to ddescribe the property ofa photographic material.
对比:原稿或图像里的明暗差别的亦用来表示照材料的明暗差别。
dimness of vision without apparent organic pathology.
没有明显的机体病变就视力变暗。
The product used for primarily the road illuminates, the tunnelilluminates,work mineral illuminate, guesthouse and ginshop, square illuminate, the courtyard lawn illuminates etc.
产品主要用于道路照明、隧道照明、工矿照明、广场照明、庭院草坪照明等。
"For you are my light, O Lord; and the Lord will make the dark bright for me."
耶和华阿，你是我的灯。耶和华必照明我的黑暗。
"You, O Lord, will be my light; by you, my God, the dark will be made bright for me."
你必点着我的灯。耶和华我的神必照明我的黑暗。
The room was poorly illumed by only one candle.
孤单单一只蜡烛把房间照得半明不暗的。
The technique of using light and shade in pictorial representation.
明暗对照法绘画中使用光线和阴影的技巧
A Study on the Links between the Folk Songs of the Ming Dynasty and the Postmodern Trend of Thought;
跨越时空的暗合与偶中——明代民歌的后现代观照
Then watch out that the light in you is not darkness.
路11:36若是你全身光明、无黑暗、必全然光明、同灯的明光照亮你。
An electrician in charge of lighting on a movie or television set.
照明电工电影或电视拍摄小组负责照明的电工
Ground lighting: The ground illuminates the conflicting ground and other lightings of the business first floor of make the square.
地面照明：地面照明使广场地面与商业底层其他照明之相争。
Those of you who have been at the front have seen the star shells, how they light up the darkness and illuminate all the obscure places.
上过前线的人都见过照明弹是怎样划破黑暗，照亮偏僻角落的。