nigrescence

nigrescence

1. 4. to be possible to spread in the silver personal ornament surface transparent cuticle cream, causes it to be more luminous, avoids the nigrescence.

4.可在银饰表面涂一层透明指甲油，使其更加光亮，避免变黑。

2. "People can feel nigrescence but it's not obvious.

“能感到变黑的感觉，但不是很明显。

3. But the sky sudden nigrescence, has combined at least 30 minutes rainstorms.

但天空突然变黑了，并下了至少30分钟的暴雨。

4. Because smokes can cause the skin cell to be at the anoxic condition, thus causes the eye socket nigrescence;

因为吸烟会使皮肤细胞处于缺氧状态，从而使眼圈变黑；

5. nigrescence","nigrescena ens ens","

在变黑色的"

6. And we have more than 30 sets of full automatic roll steel machines,and our quencher, nigrescence and test stiffness etc,each process all is checked on and controlled by our specialists.

在国内同行业中名列前茅。

7. Keywords nylon shuttle;mechanism of wear;mechanism of nigrescence;

尼龙织梭;磨损机理;发黑机理;

8. quick nigrescence

快速发黑

9. This paper work out a better applied technique of steel normal-temperature quick nigrescence via discussing various factors' influence on the speed of nigrescence and the capability of plating.

本文讨论了诸多因素对黑化速度及黑化膜性能的影响,确定较好的常温快速化学发黑实用技术。

10. After each time roll changing, must inspect the lubricant whether to harden the nigrescence, whether by impurity pollution, whether to oxidize the emulsification.

每次换辊后要检查润滑脂是否硬化变黑，是否被杂质污染，是否氧化乳化。

11. The sea water nigrescence, the school of fish migration, the gull vanishes, the naval port ecology has encountered the destruction, serious influence provincial economy sustainable development.

海水变黑，鱼群迁移，鸥鸟绝迹，军港的生态遭到了破坏，严重影响地方经济的可持续发展。

12. When Dao is baked,it is nigrescence at first,and then blanched.But this diferent from wrapped steel.

烧刃线磨时先是发黑，继续磨后发白，但白得和夹钢的发亮不同。

13. Carbon channel is usually finished with electro-galvanization. Hot dipped galvanzined finish or epoxy coating or nigrescence is also available on special order.

碳钢型钢的表面处理普通为电镀,如需热浸镀锌、喷塑、发黑等要在订货时说明。

14. Carbon channel is usually finished with electro-galvanization.hot dipped galvanzined finish or epoxy coating or nigrescence is also available on special order.

碳钢型钢的表面处理普通为电镀，如需热浸镀锌、喷塑、发黑等要在订货时说明。

15. First, strengthens against exposes to the sun, against exposes to the sun can complete can prevent the cheek nigrescence.

第一、加强防晒，防晒做得好就能预防脸蛋变黑。

16. The Britain University of London cytology expert said that the skin exposes under the ultraviolet ray, easy to create the cell deoxyribonucleic acid (dna) damage, causes the skin color nigrescence.

英国伦敦大学细胞学专家说，皮肤暴露在紫外线下，容易造成细胞脱氧核糖核酸(dna)损坏，导致肤色变黑。

17. With regards to the surface treatment, our crafts include nigrescence, phosphorization, zinc plating, dacromet, nickel plating and copper plating.

表面处理有发黑、磷化、机械镀锌、达克罗、镀镍、镀铜等工艺。

18. Study on Nigrescence Technics for Axes Shelves

轴档发黑工艺的研究

19. This is you from seashore insolation return period of time, not only long spot and nigrescence, moreover the very long time with difficulty restores reason.

这就是你从海边暴晒归来的一段时间内，不但长斑和变黑，而且很长时间都难以恢复的原因。

20. The cause of color and luster nigrescence about cooking with soy sauce

酱油烧菜色泽发黑原因剖析

21. Study on the technique of steel normal-temperature quick nigrescence

钢铁常温快速发黑技术的研究

22. What to do if the silvered jewelry become nigrescence(black color)?

银饰发黑怎么办？