Lead(Pb)怎么读

Lead(Pb)的意思释义

网络铅

英英释义

Lead(Pb)

n.

a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey

\"the children were playing with lead soldiers\"

同义词：Pbatomic number 82

an advantage held by a competitor in a race

\"he took the lead at the last turn\"

evidence pointing to a possible solution

\"the police are following a promising lead\"

同义词：tracktrail

a position of leadership (especially in the phrase `take the lead\')

\"he takes the lead in any group\"; \"we were just waiting for someone to take the lead\"; \"they didn\'t follow our lead\"

the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile)

the introductory section of a story

\"it was an amusing lead-in to a very serious matter\"

同义词：lead-inlede

(sports) the score by which a team or individual is winning

an actor who plays a principal role

同义词：starprincipal

(baseball) the position taken by a base runner preparing to advance to the next base

\"he took a long lead off first\"

an indication of potential opportunity

\"a good lead for a job\"

同义词：tipsteerconfidential informationwindhint

a news story of major importance

同义词：lead story

the timing of ignition relative to the position of the piston in an internal-combustion engine

同义词：spark advance

restraint consisting of a rope (or light chain) used to restrain an animal

同义词：leashtether

thin strip of metal used to separate lines of type in printing

同义词：leading

mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil

同义词：pencil lead

a jumper that consists of a short piece of wire

\"it was a tangle of jumper cables and clip leads\"

同义词：jumper cablejumper leadbooster cable

the playing of a card to start a trick in bridge

\"the lead was in the dummy\"

v.

take somebody somewhere

\"We lead him to our chief\"

同义词：takedirectconductguide

have as a result or residue

同义词：leaveresult

tend to or result in

\"This remark lead to further arguments among the guests\"

travel in front of; go in advance of others

同义词：head

cause to undertake a certain action

stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point

同义词：rungopassextend

be in charge of

同义词：head

be ahead of others; be the first

同义词：top

be conducive to

\"The use of computers in the classroom lead to better writing\"

同义词：contributeconduce

lead, as in the performance of a composition

同义词：conductdirect

pass or spend

\"lead a good life\"

lead, extend, or afford access

同义词：go

move ahead (of others) in time or space

同义词：precede

cause something to pass or lead somewhere

同义词：run

preside over

同义词：moderatechair

Lead(Pb)用法及例句

双语例句

1.Thepackage is available in a lead(Pb)freeversion,with100%mattetinleadframeplating.该封装采用无铅（Pb）免费版本，与100%雾锡电镀引脚框。forum.esm-cn.com2.Alldevices in the XOSM familyofclockoscillatorsarelead(Pb)-free.XOSM时钟振荡器系列中的所有器件均采用无铅设计。www.ecd123.com3.Preconditionedaccording to JEDEC Level4astandards, the CLCC-6 flat packageislead(Pb)-freeandRoHS-compliant.根据JEDECLevel4a标准预处理的CLCC-6封装无铅（Pb），且符合RoHS。www.vishay.com4.Objective: To study the protectiveeffectofnimodipine(NIM)onhippocampalneuronsinratsacutelyexposedtolead(Pb).目的：了解尼莫地平对急性铅染*大鼠海马神经元损伤的干预作用。www.hi138.com

例句参考

Evaluation of lead(Pb)-free ceramic ball grid array (CBGA): Wettability, microstructure and reliability

Decreased axonal density and altered expression profiles of axonal guidance genes underlying lead(Pb) neurodevelopmental toxicity at...

Effects of Lead(Pb) Stress on the Physiological and Biochemical Indices of Iris pseudacorus L

Lead(Pb) and Cadmium(Cd) Determination of Yacon by Graphite Furnace Atomic Absorption Spectrometry(GFAAS)

Accumulation of Lead(Pb) in Crops Grown in Polluted Farmland

Evaluation of lead(Pb)

Accumulation and Transfer of Lead(Pb) and Cadmium(Cd) on Different Species of Maize

Solubility of Lead(Pb) and Cadmium(Cd) in Soil by Microorganisms

Effects of low-dose and long-term lead(Pb) exposure on testicular enzymes in male Rana nigromaculata

Accumulation of Lead(Pb) and Its Effects on Growth and Physiological Status in Tomato

Lead(Pb)相关例句

1. Let\'s choose Latin, the language of scholarship, and so iron became Fe for ferrum and lead became Pb for plumbum and gold is Au for aurum and so on.

那就选拉丁文吧，用于学术的语言，所以，iron就变成了Fe，表示铁元素,铅变成了，Pb，表示铅元素,金变成了Au，表示金元素，等等。

2. Lead (Pb) accumulates in the blood, bone and soft tissues. It is not readily excreted and can affect the blood, kidneys, liver and nervous system.

铅积累在血液，骨骼和软组织中。铅难以被排出体外，可影响血液，肾脏，肝脏和神经系统。

3. Automotive lead acid batteries using low Sb positive grids and Pb ca negative grids sometimes suffer from the phenomena of premature capacity loss (PCL).

正板栅用低锑合金，负板栅用铅钙合金的汽车用铅酸蓄电池，有时会出现早期容量衰减现象。

4. Aim: Lead (Pb) contributes to a variety of learning, memory and cognitive dysfunction for children.

目的：慢性铅暴露可以引起儿童学习记忆和认知功能的损伤。

5. The lead concentration in Pb-Sn alloy plating bath was determined by standard additional atomic ab-sorption spectrometry, and the optimal determination conditions were obtained.

采用标准加入原子吸收分光光度法测定铅锡合金锭液中铅的浓度，试验确定了较佳的测定条件。

6. Lead (Pb) may cause a variety of learning, memory and cognitive dysfunction for children.

目的慢性铅暴露可以引起儿童学习记忆和认知功能的损伤。

7. With the increasing requirement of Lead-free electronics assembly, the patent problem on the alloy composition of Pb-free solders has also been greatly concerned.

随着无铅化电子组装需求的日益迫切，人们也越来越关注无铅焊料合金成分的专利问题。

8. The effects of cooling velocity, the lead content and the gravity on the microstructures of Al Pb alloy were discussed based on the results of optical microscope, SEM and quantitative metallography.

利用光学显微镜、扫描电镜、定量金相等技术研究了冷却速度、铅含量、重力作用等对铝铅合金显微组织的影响。

9. The principle, process and conditions of producing lead series products from Pb - contained waste slag, which is from TV tube plant, are introduced.

介绍了利用显像管玻壳厂含铅废渣生产铅系产品的原理、操作工艺及条件。

10. Projecting the lead isotope compositions on the Pb tectonic evolution model, the result indicates that the raw material of Jianchaling ultrabasic rock coming from the deplete upper mantle.

岩石铅同位素构造演化模式判别结果表明，煎茶岭超基性岩石的成岩物质来自亏损上地幔；

11. The results show that the rats appear higher urinary Pb, Zn, Ca along with lead poisoning.

结果表明，随着铅染*，大鼠出现高尿铅、高尿锌、高尿钙；

12. Lead and Pb compounds have adverse health effects to human life and the environment.

铅和铅的化合物破坏环境，有害人体健康。

13. Lead concentrations in the roots and shoots of the mining ecotype increased with increasing of Pb level in the nutrition solution.

非矿山生态型地上部分生长量随着铅处理浓度的增加而下降。

14. The friction coefficient and wear rate decreased with increasing lead content, especially the anti seizure property of al Pb alloys containing 20wt. % and 25wt. % lead was improved remarkably.

随着铅含量增加，合金的摩擦系数与磨损率显著下降，尤其铅含量为2 0 %与2 5 %的合金抗咬合性能明显提高。

15. And dirty steel belt surface, impurity and Pb phase accumulation during alloy belt manufacture lead to worse adhesion between alloy layer and steel back.

而在合金带的生产过程中，钢带表面未清洗干净，存在杂质及铅相偏聚等，是导致合金层与钢背之间结合不良的主要因素。

16. The Pb isotopic composition of ore sulfides is stable and the ore lead is ordinary common lead. Ore lead derived from magma, which came from partial melting of the upper crust in Early Cretaceous.

矿石铅同位素组成稳定，为正常普通铅，矿石铅来源于早白垩世上地壳物质部分熔融形成的岩浆。

17. The influence of structure design of Pb-plated reticulated SiC current collector on the plate design parameters and utilization efficiency of PAM of lead-acid batteries was studied.

研究了镀铅泡沫碳化矽集流体的结构对铅酸蓄电池极板的设计参数、正极活性物质利用率的影响。

18. Objective: To study the protective effect of nimodipine (NIM) on hippocampal neurons in rats acutely exposed to lead (Pb).

目的：了解尼莫地平对急性铅染*大鼠海马神经元损伤的干预作用。

19. The composition of Pb-Zn complex, often occurrence with various elements of an industrial value of non-ferrous metals lead, zinc, copper, nickel, cobalt, tungsten, molybdenum, cadmium, tin;

铅锌矿石的组成十分复杂，常常赋存着各种有工业价值的有色金属元素铅、锌、铜、镍、钴、钨、钼、镉、锡；

20. Pb-Sb and Pb-Ca alloys were generally used as the grid material for lead-acid batteries.

目前使用的铅蓄电池板栅合金主要是铅锑合金和铅钙合金。

21. Lead dioxide has been prepared chemically by methods in which Pb (II) compounds are oxidized to lead dioxide in the solution phase or in melts or by heating at elevated temperatures in oxygen.

使用化学方法制备pbo2可通过在溶液相或熔融状态下氧化二价铅的化合物，也可以通过在氧气中高温加热二价铅的化合物来制备。

22. If do not have the corresponding conditions to develop own-brand blindly, it could lead to the PB commodity impropriety, inefficient and damage enterprise image, the consequences.

如果不具备相应条件就盲目发展自有品牌，则可能导致PB商品经营不当、效益不佳以及损害企业形象等后果。

23. The method of parallel motion of response curve for lead ion-selective electrode in lead buffers is given to determine the stability constant of Pb-NTA complex in ethanol-water solvent.

本文提出了金属缓冲溶液中离子选择电极响应曲线平移法测定配合物的稳定常数。

24. Through a variety of lead-zinc type of analysis, can the majority of Pb in the accurate analysis of the various metals.

通过对多种铅锌矿样的分析，能够对多数铅锌矿中的多种金属进行准确分析。

25. Lunlang lead-zinc deposit located in central Lhasa-Linzhou-Mozhugongka Pb-Zn metallogenic region, belong to north part of Brahmaputra giant copper polymetallic metallogenic belt.

林周县轮郎铅锌矿区位于拉萨-林周-墨竹工卡铅锌成矿区中部，属雅鲁藏布江巨型铜多金属成矿带北亚带。

26. This special worth pointing out that is developing private brand, although many interests with lead, but does not mean that all chain supermarket should immediately vigorously develop PB goods.

这里特别值得指出的是，尽管开发自有品牌具有诸多利益优势，但并不意味着所有连锁超市都应立即大力发展PB商品。

27. This special worth pointing out that is developing private brand, although many interests with lead, but does not mean that all chain supermarket should immediately vigorously develop PB goods.

这里特别值得指出的是，尽管开发自有品牌具有诸多利益优势，但并不意味着所有连锁超市都应立即大力发展PB商品。

28.lead uranium age method, Pb-U dating

铅铀年代侧定法