查询词典 lead-off

The function of lead salt s(such as lead nitrate,lead actate) in cyanide leaching of gold has been studied.

绘制了Au -Pb -CN -H2 O系的φ-pH图，研究了铅盐在氰化浸金过程中的作用。

The pollution of As results from the copper deposits, the lead-zinc deposits and limonite, and from their exploitation; the pollution of Cd is related to lead-zinc deposits, the exploitation, and agricultural irrigation with waste water; the pollution of Pb and Zn are mostly ascribed to the lead-zinc deposits and related exploitation.

As元素污染的主要原因是铜矿、铅锌矿褐铁矿矿床及其开发；Cd元素的污染与铅锌矿床及其开发，以及农业污灌有关；Pb、Zn元素的污染与铅锌矿床及其开发密不可分。

Cite a case, if the lead plane of a website is put in China, so this website rank is compared certainly in Google.cn be close friends in Google.com some, same China user is searched mediumly in Google.com, lead plane also is met in webpage rank of home any better, search engine is met the situation according to lead plane, domain name, the position of the user will do proper adjustment to the rank

举个例子，如果一个网站的主机放在中国，那么这个网站排名在Google.cn一定比在Google.com中要好些，同样中国用户在Google.com中的搜索，主机在国内的网页排名也会好些，搜索引擎会根据主机的地理位置，域名，用户的位置来对排名做适当的调整

The main work of our business is to make these great end-of-life dangers of lead in lead-acid battery plate removed for Secondary Lead Smelting.

我们企业主要工作就是把这些危害性极大的报废铅酸蓄电池中的铅极板取出用于冶炼再生铅。

Hematic lead is the sensitive index that reflects near future lead to contact a level, closely related the plumbic chroma in hematic lead and air, as better as other index dependency.

血铅是反映近期铅接触水平的敏感指标，血铅和空气中的铅浓度密切相关，和其它指标相关性较好。

The principle flowsheet consist of speed flotation to obtain lead and zinc concentrat in high quality;lead and zinc middle product mixed,after finegrind,was treated in luck flotation to obtain lead and zinc bulk concentrate.

北京矿冶研究总院和凡口铅锌矿共同研发的新四产品工艺流程，其原则流程为快速浮选得高铅精矿和高锌精矿、铅锌中矿合并细磨混合浮选得铅锌混合精矿。

The detection methods of high level and trace level lead content,the status quo and technology such as pyrometallurgy and hydrometallurgy of the recycling of lead from spent lead-acid battery worldwide were introduced.

对高含量和痕量铅的检测方法、国内外从废旧铅酸电池中回收铅的现状和工艺，如火法冶金和湿法冶金进行了介绍；对废旧铅酸电池中铅回收的发展趋势进行了分析。

In the course of the lead free reflow soldering,lead and Lead free of reflow soldering affect the quality of product.

在再流焊无铅化过程中，再流焊的有铅要素与无铅要素的兼容性直接影响产品质量。

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。

Lead Excreting Milk Powder; experimental saturnism ; fecal Lead ; blood lead

排铅奶粉；实验性铅中毒；粪铅；血铅

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。