黑变

People can feel nigrescence but it's not obvious.

能感到变黑的感觉，但不是很明显。

The red cloud nigrescence cloud, must have the heavy rain to drench.

红云变黑云，必有大雨淋。

Aunt Jiang said that because before Jiang Xintian performs when Czechoslovakia sun-scald, skin nigrescence,, therefore we are borrowing this summer vacation, 50 day, she cannot put on the short sleeves, can only use the long dress trousers to cover, others thought that she has caught cold, but cannot say, because has the security stipulation.

姜妈妈说，由于之前姜馨田在捷克演出时晒伤了，皮肤变黑，"所以我们就借着这个暑假，50天的时间，她不能穿短袖，只能用长衣长裤捂着，别人以为她感冒了，但不能说，因为有保密规定。"

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。

Will steam rice before it's too late when rubs the agglomerate, places the face to rub until rubs to the greasy nigrescence, may the skin pore in fat, the contamination attract, then with the clear water cleaning, may cause the skin breath like this to be unimpeded, reduces the wrinkle.

将蒸熟的米饭趁热时揉成团，放在面部揉搓直到揉至油腻变黑，可将皮肤毛孔内的油脂、污物吸出来，然后用清水洗净，这样可使皮肤呼吸畅通，减少皱纹。

Aiming at copper cable nigrescence problems in process of producing cable by using white PVC colloid particle,the PVC partiles was tested by TGA ,DSC, TGA -FTIR.

针对使用白色聚氯乙烯胶粒生产的铜质电缆线氧化变黑问题，对PVC胶粒进行了热重分析、差示扫描量热分析、热重-红外光谱联用分析等一系列测试，分析PVC胶粒在规定的加工条件下是否会引起铜质电缆线发黑。

Flushes is cool when should take down the jewelry, meets 碱 a kind of product by against jewelry, after specially contains the chlorine bleaching agent and the silver contact, can have the chlorination to respond, causes the silver personal ornament rapid nigrescence.

冲凉时应取下首饰，以防首饰遇到碱类产品，特别是含氯的漂白剂和银接触后，会起氯化反应，使银饰迅速变黑。

2 Times a week (not too many times, can not stand the skin will), can be used for acne, and classes, freckles, the same can also narrow the nose next to nonporous, used the good people feel, skin change Bainen And also cheaper.

一星期1～2次(不要太多次，皮肤会受不了)，可用于青春痘、黑班、雀斑，同样也可缩小鼻旁的毛细孔，用过的人都觉的不错，皮肤变白嫩，又便宜。

The eye, crushed to an oblate shape, crackled and cooled to dull red and then black.

那个眼睛，被压成了扁圆形，裂开冷却成暗红然后变黑。

Osage isn't exactly the colour of Yew, but it does get darker with age, so maybe it will look like Yew in 15 years or so. Anyway, it's the best I can do.

奥色治没有完全像紫杉的颜色，不过随树龄增长会变黑，所以也许会看上去像15年树龄的紫杉，总之这是我能找到最好的材料了。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐