铅的

He provides technical direction during projects involving industrial hygiene, indoor air quality, fungal and bacterial growth assessment and abatement, safety engineering, environmental health issues, injury and illness prevention, accident investigation, hazard communication, asbestos hazard assessment and abatement consulting, lead hazard assessment and abatement consulting, noise evaluation and control, confined space entry, tunnel and underground shaft gas testing, health and safety program and policy development, waste analysis, evaluation of ventilation systems and other engineering controls, assignment of personal protective equipment including respiratory protection, drinking water quality assessment, OSHA audits, material safety data sheet development, emergency response coordination and emergency preparedness, and international occupational health and safety regulations.

为凡是涉及以下内容的项目提供技术指导，包括工业卫生、室内空气质量、真菌和细菌生长评价及消除、安全工程、环境健康问题、工伤和疾病预防、事故调查、危害通识、含石棉物质监测与控制、铅危害评价与控制、噪音监测与控制、密闭空间进入、隧道和地下矿井气体测试、健康安全计划与方针发展、废物分析、通风系统和其他工程控制评价、个人防护用品使用、饮用水质量评估、OSHA审核、改进物料安全数据表、应急响应调节和应急准备，以及国内外职业健康与安全法规。

According to the experiment design, twenty five ICR mouse were randomly assigned into five groups and administrated by oral gavage with 0,10,50,100 and 500 mg-kg1 body weight of lead acetate every other day for successive 28 days.

根据实验设计，25只ICR小鼠被随机分为5组，然后分别灌以0，10，50，100和500mg·kg~(-1)体重的醋酸铅溶液，隔天灌胃，实验持续28天，在第29天处死。

In this paper an experiment was conducted adopting balance vibration method to study the environmental behavior of Pb(superscript 2+) and Cd(superscript 2+) on goethite.

本文采用平衡振荡法，主要探讨了重金属铅和镉在针铁矿上的环境行为。

Main mineral resources are tungsten, tin, bismuth, molybdenum, copper, iron, tantalum, niobium, lead, zinc, gold, cobalt soil, Beryl, Ying Dan, K-feldspar, quartz stone, marble, crystal stone, kaolin, etc. 48 Species, groundwater resources of the main hot water mineral water, hot spring spa resort with 13, Chung, about 1,400 cubic meters, the highest temperature of 70 degrees Celsius, with weak radioactive radon and useful elements of the human body, there are important medical value .

矿产资源主要有钨、锡、铋、钼、铜、铁、钽、铌、铅、锌、黄金、钴土、绿柱石、莹石、钾长石、石英石、大理石、水晶石、高岭土等48种；地下水资源主要有热水各矿泉水，温泉风景区热水泉眼有13处，日涌量约1400立方米，水温最高70摄氏度，含弱放射性氡和对人体有益元素，有重要的医疗价值。

The application of lead salt in the cyanide leaching operation can produce microcell in the surface of gold grain.

氰化作业中应用铅盐可在金粒表面形成微电池，对于纯金颗粒这原电池可促进金的溶解。

This article generally introduces the characteristics,ranges for use and developing trends of commonly used lead alloys for lead-acid battery grid s.

简要地对铅酸蓄电池板栅常用铅基合金的性能、使用范围以及发展方向作一介绍。

Halflings of my village carry lead sheets to prove our manhood.

我家乡的半身人拿着铅板证明自己已经成年。

Why are large soft contact areas such as lead or copper braid used for surfaces or headstocks?

零件表面通电或用夹头通电时，为什么要使用大的软接触面如铅或网垫？

Why are large soft contact areas such aslead or copper braid usde for surfaces or headstocks?

零件表面通电或夹头通电时，为什么要用大的软接触面如铅或铜锌？

The researchers hypothesized that the lead would stress the cells and cause them to make hydrogen peroxide, nitric oxide, and other compounds involved in the body's immune response.

他们认为铅对细胞造成压力，使其产生过氧化氢、一氧化氮和其它人体免疫反应时产生的化合物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。