变黑

There are a number of age-blackened portraits here, including a large one behind moth-eaten moldy curtains.

墙上挂着一些因年深日久而变黑的肖像，包括一幅巨大的覆盖在一个被虫蛀得发霉窗帘后面的画像。

The time interval of the pigmentation of JBM and JBW were nearly the same, both began to pigmentize 30min after moulting, and the body color was stable until 6h after moulting, the pigmentation of obdomen was slower than wing pad. After 6h, JBW was totally brown, and JBM was black, JBW was black only one or two days before emergence.

JBM和JBW蛹着色由浅入深的时间间隔几乎是相同的，都是在蜕皮后30min开始轻微着色，到6h时体色基本稳定，翅芽着色比腹部着色慢。6h后，JBW完全着褐色，JBM完全着黑色，JBW只有在羽化前一两天才变黑。

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。

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。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。