贵金属

As the biggest rosy gold jewellery manufacturer, TTF has developed anti-discolouration and anti-rupture technology for rose gold, which has satisfactorily solved the problem of discolouration and rupture of rose gold; With "diamond fabric" technology: TTF can "weave" the diamonds into fabric-like jewelry.

作为中国最大的玫瑰金生产商，TTF永久性地解决了玫瑰金变色和断裂难题；&钻石丝绸&技术将钻石镶嵌得像丝绸一样柔软，工艺具有全球领先性；浓硫酸代替氰化钾炸金技术，解决了贵金属首饰加工工艺中剧毒化学品的污染问题，具有非常强的环保性；镀膜电金技术工艺成功解决了水银底镀膜电金这一技术难题，达到世界先进水平。

Making and designing jewelry with precious metal and gemstones is easy to learn, once you know the secrets.

设计与制作及贵金属首饰和宝石是简单易学，只要你知道的秘密。

Not only the hydrogen energy is saved, but also the catalyst is composed of transition element.

该方法不仅节省了氢源，而且用普通的过渡元素和主族元素催化剂，避免了对贵金属的依赖。

Some of the precious metals such as rhodium catalyst were used as carbonylation catalyst, which was expensive and more technology was monopolised by foreign country.

在羰基化催化剂方面，多用的铑系贵金属催化剂，价格昂贵且技术多为国外垄断。

Jewelers selling engagement rings in Evansville , In forecast several of the new top trends for this year .

贵金属销售订婚戒指在美国印第安那州 Evansville ，在预测一些新的热门趋势，为今年。

The results show that perfect anatase nanocrystalline TiO2 can be obtained by SGRTSE method and the photocatalytic activity of TiO2 can be improved by doping and surface treatment. In the experimental system, the addings of proper salts are beneficial to the photocatalytic degradation of DBSNa. The pH value of solution, adding amount of TiO2, flow rate of air, and initial concentration are the main influence factors for the photocatalytic degradation of methyl orange, and the apparent reaction order is pseudo-first-order, which could be described by Langmuir- Hinshelwood equation.

结果表明：sol-gel法结合室温溶剂蒸发诱导可制备出晶型良好的锐钛型纳米TiO_2；过渡元素和稀土元素杂原子掺杂，贵金属掺杂和表面酸化处理是有效提高TiO_2光催化活性的途径；试验体系中，在DBSNa的降解过程中加入适量的盐，可以大大加速降解效果；光催化降解水中有机物，溶液pH值，TiO_2投加量，曝气速率，被降解物起始浓度等是影响降解效果的重要因素；对起始浓度较低的有机物光催化降解过程可利用简化的Langmuir-Hinshelwood动力学方程进行描述，反应级数为拟一级。

It provides recycling and refining services at its plant in Hoboken, Hanau and in Brazil.

它在霍博肯、哈瑙和巴西的工厂提供贵金属回收和精炼服务。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。