这种鸟类的黑化现象非常罕见。

The melanism in this bird species is very rare.

黑化在一些动物中是常见的现象。

Melanism is a common phenomenon in some animals.

这只猫因为黑化而显得特别神秘。

This cat looks particularly mysterious due to melanism.

黑化可能有助于动物在夜间更好地隐藏自己。

Melanism may help animals hide better at night.

研究人员正在研究黑化对动物行为的影响。

Researchers are studying the impact of melanism on animal behavior.

还研究了黑化液组分体积分数对黑化层晶形的影响。

And effect of volume percent of each component in oxidation solution on crystal form of the blackened coating was also discussed.

蝇蛆寄生导致血淋巴黑化反应加快，黑色素增加；

The melaninization of the haemolymph quickened and the melanin increased.

克里姆林宫否认与此事有任何关联，并指控媒体试图黑化俄罗斯。

The Kremlin has denied any involvement and accused the media of trying to demonize Russians.

浅析黑化集团尿素厂变换系统的能量消耗及适宜的循环热水量的计算.

The energy consumption of convention system was analyzed and suitable circulating hot water was calculated.

干扰与血淋巴黑化相关基因及抗菌肽基因的表达以抑制寄主的体液免疫反应；

To suppress host humoral immune defense, they are able to intervene in the expression of hemolymph melanization related genes and antibacterial peptide genes.