黑变

The crystalline morphology of the novolac/PCL system and the novolac/PEO system displaysa typical "Maltese cross" birefringence pattern, and become increasingly open and irregularwith increasing amount of novolac.

Novolac／PCL体系和novolac／PEO体系的结晶形态呈现出典型的"黑十字"消光双折射模式，随着novolac含量的增加，它们的结晶形态变得逐渐开放和不规则，而且novolac／PCL共混物还具有明显的环带织构。

Isotactic polypropylene fiber ; as-spun monofilaments ; spherulite ; structure morphology ; cross polarized light ; Maltese cross ; crystalline modification ; skin-core structure ; orientation.

等规聚丙烯纤维；未拉伸单丝；球晶；结构形态；正交偏振光；马尔托思黑十字；结晶变体；皮芯结构；取向

"Such pewter, also called black metal, darkened greatly with age, and the lead readily leached out in contact with acidic foods."

这样的白镴，也叫做黑金属，因为铅和酸性食物接触容易流失，白镴随着年月会变得很暗。

"Such pewter, also called black metal, darkened greatly with age, and the lead readily leach ed out in contact with acidic foods."

这样的白镴，也叫做黑金属，因为铅和酸性食物接触容易流失，白镴随着年月会变得很暗。

Vitamin C deficiency coursed hepatopancreas, heart, spleen, gonad and metanephros growth decreasing.

结果说明：维生素C缺乏会引起幼建鲤体色变黑、鳍基部出血、鳍条糜烂、脊柱侧凸、尾部明显弯曲等明显的症状；导致幼建鲤肝胰脏、心脏、脾脏、性腺、后肾生长受阻和肝胰脏、后肾、脾脏和心脏等器官出现病理变化，引起其组织细胞结构破坏。

In defending itself so thoroughly against the monarch, the milkweed became inseparable from the butterfly. And vice versa.

马利筋为自我保护如此认真地抵抗黑脉金斑蝶的侵袭，结果变得与蝴蝶难舍难分。

In defending itself so thoroughly against the monarch, the milkweed became inseparable from the butterfly.

马利筋如此全力抵抗黑脉金斑蝶，反变得与蝴蝶如胶似漆。

The pale,the cold,and the moony smile Which the meteor beam of a starless night Sheds on a lonely and sea－girl isle, Ere the dawning of morn's undoubted light, Is the flame of life so tickle and wan That flits round our steps till there strength is gone.

传道书》在黎明射出无可置疑的曙光以前，暗黑的夜空中划过流星一点，向着汪洋大海环绕的一座小岛倾泻下苍白、寒冷、月光似的微笑，这就是生命的光焰，易变而且暗淡，照着我们的双脚，直到举步的力量耗完。

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。

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。