铅的

Objective To develop a simple,sensitive and rapid method for the determination of mercury, arsenium and lead in Gentiana straminea Maxim.

目的 建立麻花秦艽中汞、砷和铅3种金属元素的含量测定方法。

BN3b*l$~c4K2 Abstract Objective To develop a simple,sensitive and rapid method for the determination of mercury, arsenium and lead in Gentiana straminea Maxim.

目的 建立麻花秦艽中汞、砷和铅3种金属元素的含量测定方法。

In the no-AAD group, only atrioventricular nodal blocking agents were prescribed.

骨铅水平和死亡率之间的相关性还没有被研究。

Moreover, in Taiwan it is the first time the beudantite was found on the bank and streambed of a nearby Huang Gang creek.

本研究目的为探讨磺港溪底泥不同粒径中的砷、铅浓度之分布关系。

"The lead market is fundamentally one of the tightest, with supply and demand roughly balanced and global inventories relatively low," Mr Bhar said.

&就基本面而言，铅市场是最稳定的市场之一，供需大体平衡，全球库存水平相对较低，&巴尔表示。

The phosphate, vanadate and bismuthate contained glasses are promising candidates for the substituting of the lead glasses currently most used by the electronic pastes.

磷酸盐、钒酸盐、铋酸盐玻璃体系是目前含铅低熔玻璃的取代物。

In the recovery of copper and zinc, etc. from waste hydrochloric acid by zinc powder replacement, zinc chlorinate liquor is obtained.

研究了在废盐酸溶液中用锌粉置换回收铜、铅等金属得到的氯化锌溶液，采用两步调碱和磁场作用制备碱式碳酸锌。

He says that China's coal-fired power-plants and coking plants emit far more lead than the battery industry.

他说，中国煤炭火力发电厂和焦炭厂排放的铅比电池行业要多得多。

Introduce the application of liquid iron desulphuration in North America from injection method, reactant test, lead pretreatment, twin-tunnel lance technology, deslagging operation.

从喷吹方法、反应剂试验、铅预处理、双道喷枪技术、除渣操作几个方面介绍了铁水脱硫在北美的应用。

In this paper, an escherichia coli-saccharopolyspora erythraea shuttle vector containing the erya promoter region was constructed using the enhanced green fluorescent protein gene as a reporter. the shuttle plasmid was transformed into sac.erythraea a226 and streptomyces lividans jt46 by peg mediation, respectively. fluorescence microscopy confirmed that the egfp was expressed in both strains.

本文克隆了erya基因的启动子perya，以绿色荧光蛋白基因为报告基因，构建了大肠埃希菌-糖多孢红霉菌穿梭型质粒。peg介导原生质体转化法将穿梭型质粒分别转入糖多孢红霉菌a226与变铅青链霉菌jt46，荧光显微镜检测发现，此启动子在两菌株中都具有功能。

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。