查询词典 lead time

In order to understand the lead and mercury content in Baby, sedative Chinese herb drugs, 179 preparations and 52 herbs of Chinese drugs were analyzed. Samples were prepared by Ash determination in lead and sulfuric acid-nitirc acid digestion in mercury, then determined by AAS.

将市售小儿惊风散类制剂179件及其药材52种，分别以灰化法及硫酸硝酸法处理后，利用原子吸光光度法(Atomic Absorption Spectrometry；AAS)测定铅及汞之含量。

On the basis of the fundamental theory as illustrated in binary Pb-Ag system,a segregating method by crystallization has been adopted to separate lead from lead-silver bullion of 20-25wt% Ag,and thus a production alloy more than 90 wt % Ag was obtained.

根据 Pb—Ag 二元相图的基本理论，采用凝析结晶分离的方法，分离铅银合金，使合金中的含 Ag 量由20～25%富集到95%以上，并探索了分离过程中的一些基本规律和现象。

TWF, lead acetate and cadmium chloride. Methods Using NADPH-d histochemistry to investigate activity change of NOS in the testis of mice, which were survived for 1,2,3,4 weeks after administration of TWF, lead acetate and cadmium chloride.

给予醋酸铅和氯化镉1周后，NOS阳性的睾丸间质细胞数量明显减少，并随给药时间延长而加重，NOS活性逐渐降低，给药4周后NOS阳性的睾丸间质细胞几乎不着色。

For most of the lead characters of buyers, they take a lot more are lead the ability to color an exact match, followed by rose anatkina.

差于不小不小都打样机的采办者来说，他们思考得更众的是打样机色彩不小略不败婚的本领，其次是玫瑰斑的题纲。

Substandard toys will lead, especially in brightly colored plastic products, and some bad bottle system's color patterns also lead, so the best there is no pattern to the baby with the transparent bottle.

不合格的玩具是会含铅的，特别是颜色鲜艳的塑料制品，有的劣制奶瓶上的彩色图案里也含铅，所以最好给宝宝用没有图案的透明奶瓶。

In addition to a few main reasons for the above, the internal display if too much dust has accumulated, they easily lead to monitor the work of the internal components do not work, and ultimately will lead to display color images can not be accurate.

除了上面几个主要原因外，要是显示器内部积累了太多的灰尘时，也容易导致显示器内部的工作部件不能正常工作，最终也会引起显示器无法准确显示图象色彩。

Aim at the Non-destructive testing of thin-wall lead alloy castings, X-ray testing parameters are optimized and the hole-style image quality indicator is designed and manufactured,thus the X-ray testing and the process control of thin-wall curve face lead alloy castings are realized.

针对薄壁铅合金铸件的内部质量检测问题，通过优化射线检测参数和研制孔型象质计，实现了薄壁曲面铅合金铸件的射线检测和检测过程控制，并对在孔型象质计灵敏度控制下的渣孔类缺陷的检出能力进行了分析和试验。

Liu Dakun, director of Yunnan's lead prevention office for children, said that on average 50% to 60% of children under the age of 14 in the province's mining regions suffer lead poisoning.

云南省少儿铅防治办公室主任刘大昆说，在该省的一些矿区，14岁以下儿童铅中毒的比例平均有50%至60%。

This paper has carried out careful thorough research according to the EDTA basic principle of the content of zinc in titration mensuration lead zinc mine, for its mensuration condition , has given steady, reliable analysis method and operating step , can offer guidance and basis for the inspection of lead mine in mining, metallurgical profession laboratory.

本论文根据EDTA滴定法测定铅锌矿中锌的含量的基本原理，对其测定条件进行了细致深入的研究，给出了稳定、可靠的分析方法和操作步骤，可为矿山、冶金行业化验室中铅锌矿的检验提供指导和依据。

The oxidation process of lead sulphate in the inner part of the grain, which is formed directly by anodizing lead, is much slower.

至于颗粒内部由铅直接生成的硫酸铅的氧化为二氧化铅就要缓慢得多。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。