查询词典 lead on

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

Lead – A lead vocal , lead instrument or solo.

Lead－主人声、主乐器或者乐器独奏。

Ore deposits of this region are assigned to Caledonian metallogenic series and Indosinian metallogenic series according to ore-bearing strata, granites related to ore deposits mineralization type and temporal-spatial distribution characteristics of ore deposits. The Caledonian series is further divided into three subseries, namely lead and zinc metallogenic subseries, lead, zinc and iron metallogenic subseries and lead, zinc, tungsten, tin and molybdenum metallogenic subseries.

本文根据所发现的25个矿床的赋矿地层、与成矿有关的花岗岩、矿化类型及其时、空分布特征，将它们划分为加里东期成矿系列和印支期成矿系列，进而又将加里东期成矿系列划分为铅、锌成矿亚系列，铁、铅、锌成矿亚系列和铅、锌、钨、锡、钼成矿亚系列。

The result indicated the soil catalase and urease activities and the soil lead concentration is extremely remarkable is connected, may express the lead pollution degree; The lead pollution soil after the Digitaria sanguinalis repair, the catalase and urease activities obtains the restoration, is good according to theirs revivification estimate of the situation Digitaria sanguinalis repair effect.

结果表明土壤过氧化氢酶和脲酶活性与土壤铅浓度极显著相关，可表示出土壤受铅污染程度；铅污染土壤经过马唐修复后，过氧化氢酶和脲酶活性均得到恢复，根据它们的活性恢复状况判断出马唐修复效果较好。

Vehicle's collision with the speed control hump would lead to vehicle damage, driving unconfort, noise pollution and speed control hump would lead to damage. The units of speed control hump were laid dividually in transverse direction to solve the problems. Inequations were given to guarantee that vehicles would not tilt when passing speed control hump would lead to.

提出将垄单元横向间断布设以解决车辆与减速垄反复碰撞造成车辆损坏、驾乘舒适性差、周边环境振动、噪音污染和减速垄损坏等问题，列出不等式组保证车辆通过垄单元时不发生倾斜。

The polyvinyl chloride static and dynamic experiments of the heat stability by three novel low-lead, non-lead and low-tin, and non-lead and non-tin thermal stabilizers remixed respectively with phosphite ester, epoxidized soybean oil,β-diketone, pentaerythritol and houghite were reviewed.

通过新型低铅、无铅低锡和无铅无锡热稳定剂分别与亚磷酸酯、环氧大豆油、β-二酮、季戊四醇和水滑石进行复配，进行了聚氯乙烯的静态和动态热稳定性实验。

However, as well known, during traditional fire metallurgy of lead and production of lead/acid battery, there are emissions of lead vapor, sulfur dioxide and leady dust, which is harmful to the health of operators and brings about atmosphere pollution.

因此，应该研究和实现铅酸蓄电池的清洁生产。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。