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1)  black and white films
黑白膜
2)  tattooing of leucoma corneae
角膜白斑染黑术
3)  black film
黑膜
1.
The effect is obvious on weed control with black film mulched,the fresh weight of weed in field is reduced 70.
利用黑色地膜覆盖防草效果明显 ,田间杂草鲜重比与黑膜同材质的透明地膜覆盖减少 70 。
2.
The black films for reducing the reflection for environmental light were designed and fabricated tests for their reflection performances show that reflectivity of the black films were reduced from 90 % to 20 % than Al films;the lowest reflectivity could reach to 13 %.
利用光学薄膜辅助设计系统软件进行了一种黑膜的模拟计算,据模拟结果制备了黑膜,测试分析了其减反性能并进行了性能改进的初步研究。
4)  black and white
黑白
1.
About the Principle of Black and White——From the black and white woodcut;
黑白之道浅议——从黑白木刻谈起
2.
The Art of Weiqi,Life and Fate──Review on Chu Fujin′s Novel Black and White
棋艺·人生·命运——评储福金长篇小说《黑白》
3.
This article presents a discussion on the color design principle for matching black and white in fashion design, characteristics of color contrast and the appreciation and artistic charm of the color.
本文阐述了服饰设计中黑白搭配的色彩原理、对比特点以及它们所表现出来的审美价值与艺术魅力。
5)  black-and-white [英]['blækən'hwait]  [美]['blækənd'hwaɪt]
黑白
1.
TIAN JI N brand aerial photographic film is a high-speed,high-contrast,high resolving po wer,high-definition black-and-white panchromatic photographic material mainly used by air force or navy for carrying out aerophotographic activities needed for military operations ,e.
天津牌黑白航空摄影胶片是一种高感光度、高对比度、高分辨率、高清晰度的黑白全色感光材料,主要应用于空军和海军的一些军事活动相关的航空摄影作业,如:军事侦察、空中轰炸,歼击机战斗以及军用或民用的地形测绘、资源考察等工作。
2.
This paper presents a summary of practical experiences dealing with the use of RC (Resin Coated) black-and-white photographic paper and a report on the comparison of the properties and performance of domestic LUCKY black-and -white RC photo-paper and the Indian SDELI similar product available in the market.
本文扼要总结了使用RC(涂塑)黑白照相纸的实际使用经验并对比了国产乐凯照相纸和印度斯德丽照相纸的性能和效果。
3.
This paper outlines in detail the characteristics and directions of use of SHANGHAI brand type GP3100black-and-white photographic roll film.
本文详细介绍了上海感光材料厂生产的新一代的上海牌GP3100型黑白照相胶卷的性能特点和使用方法。
6)  W / B White / Black
黑/白
补充资料:电解食盐水溶液离子膜电解槽所用的膜材料之一
分子式:
CAS号:

性质:又称全氟羧酸-磺酸复合离子膜  Rf-COOH-Rf-SO3H  电解食盐水溶液离子膜电解槽所用的膜材料之一。使用时,将较薄的羧酸层面向阴极,较厚的磺酸层面向阳极,因而兼有羧酸膜和磺酸膜的优点。由于Rf-COOH层的存在,可阻挡氢氧离子返迁移到阳极室,确保了高的电流效率(96%),因Rf-SO3层的电阻低,能在高电流密度下运行,且阴极液可用盐酸中和,产品氯气中氧含量低,氢氧化钠浓度可达33%~35%。可在全氟磺酸膜上涂敷一层全氟羧酸的聚合物,或是将磺酸膜和羧酸膜进行层压,或是采用化学方法处理而制得的复合膜。现以采用化学方法处理者质量最佳。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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