查询词典 nigrescence

The new generation of steam bluing furnace our company developed thoroughly changed the chemistry bluing,nigrescence and the bad environment pollution, to make a significant contribution for energy-saving and environmental protection.

同时我公司制造的高温台车式电阻炉，是国家专利电炉产品，专利号：200520096582.4，是同类型台车式电阻炉中的高节能高技术产品。

Sends blue, nigrescence the color depth is adjustable, the luster is even and bright, each target surpasses chemistry bluing and nigrescence furance, does not have any pollution to the environment, belongs to

发兰、发黑颜色深浅可调，色泽均匀、亮丽，各项指标均优于化学发兰、发黑炉，对环境无任何污染，属于绿色环保产品。

Beishan river is one of the most serious contaminated river which is nigrescence and effluvium and the COD is between 800 mg/L and 2000 mg/L.

北山河是温州黑臭极其严重的河流之一，河水发黑，具恶臭， CODCr 高达800-2000mg/L ，治理难度极大。

People can feel nigrescence but it's not obvious.

能感到变黑的感觉，但不是很明显。

The silver accessories nigrescence changes yellow is the normal natural phenomenon, because in the air and other natural medium's sulfur and the oxide compound and so on have certain corrosive action to the silver, after wearing period of time, will present some small spots, the long time will proliferate Large expanse, will turn the black.

银饰品变黑变黄是正常的自然现象，因空气和其它自然介质中的硫和氧化物等对银都有一定的腐蚀作用，在佩戴一段时间后，就会出现一些微小的斑点，久之会扩散成片，甚至变成黑色。

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

红云变黑云，必有大雨淋。

In this paper,the laser hardening technological parameters and the nigrescence technology with surface oxidation have been studied on tiny workpieces of 4Cr13 stainless steel,while the influences of the laser technology and various lapping ratios on hardness,depth and microstructures of the hardening layer have been explored.

研究了 4Cr13不锈钢细小零件激光表面强化工艺参数和材料表面氧化法发黑工艺，探讨了激光工艺和不同的搭接率对强化层硬度、淬硬层深度和表层组织结构的影响。

Some boy or girl in the breast can occur after birth increased, especially after birth, 5-7 days more obvious, such as broad bean or walnut size, and even found around the nipple and areola area nigrescence, if squeezing breasts also found out the nipple.

有一些男婴或女婴在生后可以出现乳房增大，特别是生后5一7天更加明显，像蚕豆或核桃大小，甚至还发现乳头周围乳晕区发黑，如果挤乳房还可发现乳头流出。

With technology's revolution by days, competition sharply growth in nowadays, we make endeavors on improving and renovating our technology in metal surface treatment and importing new product category. The same time ,to meet the environment and market growing demand, our room temperature nigrescence and degrease reagents meet ROHS standards, achieved SGS certification finally.

科技月新日异，市场竞争日益加剧，热士化工针对新技术的发展与一向为客户所重视的产品稳定性，不断致力于产品的技术革新及先进和高质之金属表面处理技术、产品的引进，同时为了响应环保及满足市场需求，热市化工产品钢铁常温发黑剂及脱水防锈油已经达到欧盟ROHS指令的要求，并通过了SGS公司的认证。

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。"

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。