查询词典 lead acetate

One week after administration of lead acetate and cadmium chloride, the numbers of NOS-positive IC reduced significantly.

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。

Six application rates of lead acetate were added to obtain the Pb concentrations of 0, 100, 300, 500, 700 and 900 mg·kg -1 soil.

结果表明，2种土壤在外源铅含量为100和300 mg·kg-1时，土壤微生物生物量有微小增加，而高浓度铅污染使土壤微生物生物量显著降低。

Purpose:To investigate the antagonistic effect of nerve growth factor (NGF 2.5S) on the neurotoxicity of lead acetate.

目的：研究神经生长因子(NGF 2.5S)对不同浓度的醋酸铅神经毒性拮抗效应，观察细胞分化以及细胞形态的影响，同时进行了醋酸铅的毒性试验和细胞分化的比较。

The chlorodecarboxylationof-abietic acid using Lead acetate and 〓 was also investigated.

本文对松香酸、香紫苏醇及龙涎香型香料的相关研究工作进行了综述。

PZT (50/50) thin films were prepared by metallo-organic compound decomposition method using lead acetate, titaniu m-n-butoxide and zirconium oxychloride on Pt/SiO〓/Si substrates.

其基本淀积条件为：微波功率500W，反应压力0.4Pa，衬底温度100℃，气体流量30～50 SCCM，此条件下薄膜的淀积速率大于15nm/min，8英寸直径内均匀性优于97%，折射率分别在1.93、1.47和1.47～1.92。

The polarization fatigue mechanism and the effect of donor doping Bi〓 on ferroelectric properties of PZT thin films are also revealed. The system of zirconium oxynitrate—tetrabutyl titanate—lead acetate anhydrate—ethylene glycol is adopted to prepare stable PZT sol.

本文采用X射线衍射分析、X射线光电子谱分析、透射电镜、原子力显微镜、扫描电镜、红外光谱分析以及铁电性能测试等研究了溶胶-凝胶法制备PZT铁电薄膜的成胶机理及PZT铁电薄膜的微结构、界面结构及铁电性能，并考察了施主掺杂Bi〓对薄膜铁电性能的影响规律，提出了铁电极化疲劳机制。

II. Oxidation of α,β-Unsaturated Ketones with Hypervalent Iodine Reagent Literatures reported that lead acetate-borontrifluoride etherate (LTA/BF3-Et2O) can transform α,β-unsaturated ketone to β,γ-unsaturated carboxylic acid ester through an one-step oxidative rearrangement reaction. Our research along this line indicated that hypervalent iodine reagents can also affect the same reaction.

II。 高价碘对α，β-不饱和酮之氧化研究先前已有文献指出用leadacetate-borontrifluoride etherate (LTA/BF3-Et2O)做氧化剂，可以经由一步的重组氧化反应把α，β-不饱和酮(α，β-unsaturated ketones)氧化成β，γ-不饱和碳酸酯(β，γ-unsaturated carboxylic acid esters)衍生物。

Strains, which were white or light brown when grew on the lead acetate media plates, were selected. Then, the different differential medium plates containing NaiS and as the only sulfur sources were used to select 24 strains, which grew well on plates, but didn't grow well on Na2SO3 plates.

选择在醋酸铅显色平板上菌落颜色为白色或浅棕色的菌株(H_2S产生少的菌株)111株，分别对应点接于以Na_2S和Na_2SO_3为唯一硫源的两种鉴别培养基上，选择在Na_2S培养基上菌落较大，同时在Na_2SO_3培养基上菌落较小或不生长的突变菌株24株。

Nanocrystalline Pb(Zr0.52Ti0.48)O3 was prepared from lead acetate, zirconium oxynitrate and tetrabutyltitanate by a sol-gel method.

以醋酸铅，硝酸氧锆，钛酸四丁酯为原料用溶胶－凝胶法制备了纳米Pb(Zr0.52Ti0.48)O3。

However, under electron microscope, lead acetate induced nuclear pyknosis, mitochondrial swelling and vacuolization, and cell blebbing.

但电子显微镜下已出现细胞核固缩；线粒体肿胀、正常结构消失并伴有空泡化；胞内出现鼓泡等现象。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。