铬

Heating after 25min to 198℃; Third step, adds the surplus sulfuric acid to the pot, the sulfuric acid and a sodium bichromate mole of ratio is 2.10. Heating after 10min to 204~205℃.

加热经25min至198℃；第三步，加剩余硫酸至罐内，硫酸与重铬酸钠的摩尔比为2.10。

Treated or combined with bichromate.

与重铬酸盐一起加工或化和。

Because the batch feeding of aspect both response is very quick, therefore after should respond the pot first preheating, gets ready the materials again, causes beginning of the sodium bichromate and the sulfuric acid contact responded immediately.

投料方面由于两者反应很快，故应先将反应锅预热后再投料，使重铬酸钠和硫酸接触之始迅即反应。

METHODS 3-methoxy-7α-methylestra-1,3,5(10)-trien-17β-ol was reducted with lithium and ammonia,then the intermediate was hydrolyzed in oxalic acid and reacted with malonic acid to get 3,3-dimethoxo-7α-methylestra-5(10)-en-17-ol(compound 4),which was oxidated by pyridium bichromate ,reacted with acetylene,and hydrolyzed in oxalic acid again to get the product tibolone.

方法以3-甲氧基-7α-甲基雌甾-1，3，5(10)-三烯-17β-羟基为起始原料经锂胺还原、草酸水解、缩酮化得3，3-二甲氧基-7α-甲基雌甾-5(10)-烯-17β-羟基(化合物4)，然后用温和的氧化剂重铬酸吡啶盐氧化、炔化、再水解得目的产物。

We supply in various kinds of mineral lens, CR-39 lens, middle index and hi-index hard resin lens single vision, bifocal or progressive, in traditional spherical or new spherical design.

我们供应各种矿物晶体，铬- 39镜头，中间指数及高科技指数硬树脂镜片的单一视野，双部位或进步，在传统的球面或新的非球面设计。

Our product range includes CR-39 lenses, round top bifocals, flat top bifocals, 1.523 mineral lenses, photochromic lenses, and sunglasses.

我们的产品包括铬39镜片，圆顶双光眼镜，平顶双光眼镜，1.523矿产镜片，变色镜片，太阳眼镜。

Transform your favorite jewelry pieces into a dazzling display by storing them on a Polished Chrome Bijou Jewelry Tree.

改变你成为一个耀眼的显示器件最喜欢的首饰存储在一个珠宝抛光铬愉景树他们。

Black matrix is one of the key components in color filter application. Metal CrOx/Cr and polymer black resin material are often used as the BM. Effects of processing parameters on patterns and optical properties of BM, used with these two kinds material were studied.

中文摘要由於黑色矩阵是彩色滤光片关键的制程之一，因此本实验是针对彩色滤光片中的黑色矩阵常用的材料如CrOx/CrOy/Cr低反射铬膜和黑色树脂，研究制程参数对其图像和光学特性的影响。

Supercharged power, sporty rideThe 2004 Park Avenue Ultra provides surprising handling and a sporty ride thanks to its 17-inch chrome-plated aluminum wheels, P235/55R17 Goodyear Eagle LS blackwall touring tires and a standard Gran Touring package with specially tuned suspension and rear stabilizer bar.

增压动力，运动rideThe 2004年公园大道超提供惊人的处理和运动车由于其17英寸镀铬铝轮毂，P235/55R17固特异Eagle储蓄blackwall旅游轮胎和一个标准的大旅游的特殊调校的悬挂和后部稳定软件包酒吧。

Objective To investigate diagnosis and treatment of pheochromocytoma of bladder.

目的提高膀胱嗜铬细胞瘤的临床诊断和治疗水平。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。