无铅的

In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.

本文研究了含铅的硼酸盐封接玻璃和无铅磷酸盐封接玻璃。

Although the unlead gasoline was used,the lead continues to cumulate in the soil with a minor range.

在无铅汽油推广使用后铅在路域土壤中的累积仍在继续，但累积值降低。

The simulation and experimental results verify the validity of proposed illuminator for leadless solder joint inspection,and show it can enlarge the feature distances from different classes.

仿真和实验结果表明，所设计的光源在检测无铅焊点时同样有效，并能使不同类焊点间的特征距离更大，最大为半球形光源照射下的11.88倍，从而提高了特征在无铅焊点缺陷检测的分辨能力，验证了光源设计的有效性。

With the RoHS promulgated by European Union and the enhancement of human environmental pro- tection consciousness,leadless low-melting glasses is getting more and more attention.

概述了无铅低熔玻璃的国内外研究现状，对无铅硼酸盐，磷酸盐、钒酸盐玻璃等体系的组成以及物化性能进行了较为全面的介绍，并分析了无铅低熔玻璃今后发展的难点和趋势。

Based on alkali- boron- silicon system, a compound function of several alkali metals, alkaline- earth metals and admixtures is used to replace that of lead to develop environment- friendly, leadless flux for overglaze colors with low bismuth content.

在碱-硼-硅系统基础熔剂中引入外加剂，通过多种碱金属、碱土金属及外加剂等复合效应来代替铅在熔剂中的作用进而研制低铋环保型无铅熔剂。

In the alkali-boron-silicon system basic fluxing agent,we use the combined effects of alkali metals,alkali earth metals and admixture s to replace lead,in order to produce environment-protecting unleaded fluxing agent for overglaze colors with low bismuth.

在碱-硼-硅系统基础熔剂中引入外加剂，通过多种碱金属、碱土金属及外加剂等复合效应来代替铅在熔剂中的作用进而研制低铋环保型无铅熔剂。

To suit the thought of international electronic environment protection ,we develop the lead free and green electronic assembly project at first , and yield a product in first suitable lead free soldering GS series reflower and WS-350PC series wave soldering system, help many enterprises realize lead free process improvement in the same time, and gained a good reputation and remarkable achievement.

公司针对国际电子行业环保概念的兴起，引入了无铅焊料和绿色电子组装的全新课题，率先开发出适合无铅焊接的GS系列热风回流焊锡机和WS-350PC系列波峰焊锡机，成功帮助了众多企业实现无铅制程工艺的改良，同时也为公司赢得了很高的声誉。

This method is simple, rapid and accurate for determination of trace lead in unleaded gasoline.

本方法操作简便、快速，适合于无铅汽油中痕量铅的快速测定

Electric roller operators and hardware mottled, gold, silver, copper, nickel, non-thani thani, unleaded non-thani thani, green ancient, red ancient, bronze, copper, blue zinc, color zinc, white zinc , and other customer special color.

滚电部经营及小五金杂色、金、银、铜、镍、无叻叻、无铅无叻叻、青古、红古、青铜、红铜、蓝锌、彩锌、白锌、等一些客户要求的特别色泽。

In order to ensure that the connections do not leak, often with the lead oil, hemp, and PTFE wire filled with raw materials; of these raw materials PTFE tape, use growing a wide range; corrosion resistance of this material can be a very good sealing effect a very good, easy use and storage, demolition, you can be completely removed, because it is a layer of non-sticky film, more than lead oil, hemp line is much more superior.

为了确保连接处不漏，往往用铅油、线麻和聚四氟乙烯生料带填充；其中聚四氟乙烯生料带，使用日见广泛；这种材料耐腐蚀性能很好，密封效果极佳，使用和保存方便，拆卸时，可以完整地将其取下，因为它是一层无粘性的薄膜，比铅油、线麻优越得多。

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。