黑化

In order to identify the mechanism of melanic mutant of S. exigua, genetic regulation on pupae body color, puparial exuviae, phenoloxidase activity, dopamine andβ-alanine of SEW and SEM were investigated.

本文以SEW和SEM为材料，分别从蛹黑色性状的遗传规律、多酚氧化酶活力、电镜分析、高效液相分析、多巴胺和β-丙氨酸的微量注射及饲喂诱变几个方面进行了研究，以期找出甜菜夜蛾黑化的机理。

Early embryos dissected from host larvae hemocoel grow bigger in size and proliferate by the invagination of extroembryonic membrane, but they can not develop into the individual stage.

从寄生初期寄主幼虫体内得到的初级胚胎可以在体外培养条件下长大并持续通过胚外膜凹陷进行增殖，但无法进入个体发育阶段，胚胎最后黑化死亡。

Letterbox simply blackens out the top and the bottom and optionally left and right side of each frame.

此滤镜仅用于将每帧视频的上下部分黑化。

Insect melanism is one of the common polymorphism in nature, and has become classical study system for species evolution and adaptability.

昆虫黑化是自然界中普遍存在的一种多型现象，也成为揭示物种在自然界中进化与适应的经典范例。

Transcription factor Relish of An. stephensi might play a role in signal modulation of Plasmodium yoelii infection and oocyst melanization.

斯氏按蚊转录因子Relish可能在疟原虫感染或/和约氏疟原虫卵囊黑化调控中发挥重要作用。

The mean value of Ca2 + in the mature oocysts was (137.15 ±7.02) nmol/L but was (18.44± 1.75) nmol/L in melanized oocysts with Ca2+ sedimentation in the wall of oocyst.

约氏疟原虫成熟卵囊的囊内Ca~(2+)为(137.15±7.02)nmol/L，完全黑化卵囊为(18.44±1.75)nmol/L，并在囊壁出现明显的钙沉着。

The results were:The main morphological difference were that the color of squama, median fascia, reniform stigma, orbicular stigma, the part between postmedian fascia and subterminal fascial and terminal hair on forewings, hindwings, terminal hair on hindwings, and the color of skin under squama on obdomen were black, and the color of pupa was also black, and the color of hair on dorsal thorax and obdomen were white.

结果表明： JBM和JBW的主要形态区别表现在成虫前翅上鳞片、中横线、肾状纹、环状纹、外横线及亚外缘线之间的部分、前翅缘毛、后翅、后翅缘毛、腹部鳞毛下的皮肤颜色以及蛹体色等发生了黑化，成虫胸背毛颜色以及腹部毛颜色发生"白化"。

It has been used on cutting tatami omote, the traditional Japanese swordsmanship cutting targets.

而护手和柄尾都经过黑化，以进一步防锈。

Good quality and complete specifications relay on our production technique,i,e.automatic cold forging and form ing,thread rolling and TXG heat treating.Our products can be made with different surface heat handling like Nigrescene,Zincification,Copperize,Nickel.

公司产品品质优良，规格尺寸齐全，生产技术包括自动化冷锻打造成型，轮锻辗牙及全自动 TXG 黑化热处理等优良技术，产品表面处理现有发黑、镀锌、镀铜、镀镍、渗碳等。

Good quality and complete specifications relay on our production technique,i,e.automatic cold forging and forming,thread rolling and TXG heat treating.Our products can be made with different surface heat handling like Nigrescene,Zincification,Copperize,Nickel.

公司产品品质优良，规格尺寸齐全，生产技术包括自动化冷锻打造成型，轮锻辗牙及全自动TXG黑化热处理等优良技术，产品表面处理现有发黑、镀锌、镀铜、镀镍、渗碳等。

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