查询词典 lead off

Then, in 1979, a well-designed study by pediatrician and psychiatrist Herbert Needleman resolved the dispute by establishing a direct correlation between the lead content of a child's teeth and bad classroom behavior. Twelve years later follow-up studies on these children found that those who had the highest lead levels in their teeth as children continued to have school problems through their last year of high school including more school failures, reading disabilities, and lower class standing.

到1979 年，由儿科医生兼精神病学家赫伯特·内德勒曼设计的一个著名实验证明不良的学习成绩与儿童牙齿中的铅含量直接相关，从而为争议下了定论12 年后对这些人的后续研究表明，当年牙齿中含铅量最高的孩子在中学毕业前一直存在学习上的问题，包括考试不合格、阅读障碍和班级排名靠后。

A new method was studied for the determination of Nickel in Lead ingot in nitre acid after the main part were separated by Lead Sulphate.

方法操作简单，精密度、准确度均可满足分析要求，适用于铅锭中0 0001%～0 005%镍量的测定。

Based on the pressure curve experiment, the physical characteristic of ore-bearing rocks of the Luoba lead-zinc deposit in the Qinling Xicheng deposit field shows small porosity, low permeability and bad link ostiole in the ore-bearing rocks series. The feature indicates that the physical characteristic of ore bearing is unfavorable for forming the Luoba lead-zinc deposit.

采用压汞分析技术对秦岭多金属成矿带西成矿田洛坝铅锌矿床含矿层各岩系的物性特征进行了研究，结果表明含矿层各岩系物性特征具有孔隙度小、渗透率低、孔喉连通性差的特点，这一特征对洛坝大型矿床的形成是极为不利的。

The paper introduced the method and the theory of Lead Sulfide film preparation——Chemical Deposition and analyzed the reason of outshoot cling to the surface of Lead Sulfide film during the process of chemical deposition .

本文介绍了PbS薄膜常用化学沉淀的制备方法及原理，深入分析了基片沉淀过程中表面出现突出物现象的原因，薄膜基片电镜分析以及改善PbS基片表面均匀性的工艺方法。

9 Lead to turn on electricity a test: LCD manifestation:Overdischarge Test, the test semi-processed goods battery lead to turn on electricity protection function, if the battery electric voltage be low to the 9.2 V can't stop turn on electricity, LCD manifestation:Overdischarge Fail.

4.9 过放电测试： LCD显示：Overdischarge Test，测试半成品电池过放电保护功能，若电池电压低到9.2V时不能停止放电，LCD显示：Overdischarge Fail。

Rapid economic growth may lead to an overextension of resources and lead to an eventual catastrophic

经济迅速增长可能导致过度使用资源，并引起最终巨大的灾难。

Rapid economic growth may lead to an overextension of resources and lead

经济迅速增长可能导致过度使用资源，并引起最终巨大的灾难。

Rapid economic growth may lead to an overextension of resources and lead to an eventual catastrophic meltdown .

经济迅速增长可能导致过度使用资源，并引起最终巨大的灾难。英语学习网

Rapid economic growth may lead to an overextension of resources and lead t o an eventual catastrophic meltdown .

经济迅速增长可能导致过度使用资源，并引起最终巨大的灾难。

Rapid economic growth may lead to an overextension of resources and lead to an ev entual catastrophic meltdown .

经济迅速增长可能导致过度使用资源，并引起最终巨大的灾难。

The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.

第二个就是从你的饮食中减少一百卡路里，只是相当于一大汤匙的黄油。

This is where the Rorschach test comes in.

现在，罗氏测试就出现了。