化学

objective:to investigate the expression and significance of rb in the occurrence, development and regression of infantile hemangiomas.methods:the expression of rb was examined in the proliferative stage and catagen of human hemangiomas and normal skin tissues by using immunohistochemical technique.immunohistochemical technique for factorⅷ-related antigen was used to prove that the cells which expressed rb were endothelium.image analysis system was applied to measure the expression level of rb at different stages of hemangiomas and in normal skin tissues.results:the expression of rb was significantly lower in proliferating hemangiomas than that in involuting hemangomas(p.05).conclusion:rb might play an important role in the regression of human hemangioma endothelial cells and anti-angiogenesis.

目的：探讨rb蛋白在血管瘤发生、发展及退化过程中的表达状况及其意义。方法：采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中rb的表达水平，并结合第ⅷ因子相关抗原的免疫组织化学染色证实表达rb的细胞是血管内皮细胞。利用计算机图像分析技术测量不同时期血管瘤组织和正常皮肤组织rb表达的积分光密度和面积。结果：增生期血管瘤内皮细胞rb表达水平低于退化期，差异有显著性（p.05），退化期血管瘤内皮细胞rb表达水平与正常皮肤组织相比，差异有显著性（p.05）。结论：rb通过抑制血管瘤内皮细胞增殖和血管生成而在血管瘤的退化过程中起重要作用。

Methods: The expression of P57(superscript kip2) was examined in proliferating, involuting human hemangiomas and normal skin tissues by using immunohisto-chemical technique. Immunohistochemical technique for factor Ⅷ-related antigen was used to identify that the cells which expressed P57(superscript kip2) were endothelia.

采用免疫组织化学方法检测人皮肤血管瘤增生期、退化期及正常皮肤组织中P57(上标 kip2)的表达水平，并结合第Ⅷ因子相关抗原的免疫组织化学染色证实表达P57(上标 kip2)的细胞是血管内皮细胞。

Electric conductivity method is one of the means which can be used to determine the ionization equilibrium constant of electrolyte solution.

离解平衡常数是研究电解质溶液性质的重要参数，在研究化学问题，如反应速率、化学活性、吸收等具有重要意义。

A new chemiluminesence method for the determination of isoniazid with flow injection technique was developed.

优化了反应条件，建立了一种利用后化学发光反应测定异烟肼的流动注射化学发光分析法。

The jouncing of his camel,the desert heat,and the chemicals in the pouch lining made the milk separate into curds and whey.

由于骆驼行走时的震荡，沙漠的高温，再加上装在小袋里面化学物品的化学作用，使牛奶分解成凝乳和乳浆。

In this paper, the flotation rule and behavior of kyanite一group polymor-phous minerals were studied in modified Hallimond tube in detail,Further-more, the energy change of collector/mineral systems before and after ad-sorption and the net charge densities of the atoms on the minerals surfaceswere calculated by use of quantum chemistry ,The flotability of the mine-rals was successfully explained.

进一步应用量子化学CNDO／2法计算了捕收剂在矿物上吸附的能量变化和矿物表面原子的电荷分布密度，并根据量子化学计算结果成功地解释了蓝晶石类同质异相矿物的浮选规律。

Thermochemical Hole Burning memory uses the STM heating effect to induce a localized thermochemical decomposition of Charge Transfer Complexes, evolving the low-boiling point donor component and creating nanometer-sized holes on the crystal surface. In this thesis, we focus our research on the material synthesis and storage mechanism of THB memory.

热化学烧孔(Thermochemical Hole Burning，THB)技术是基于STM的超高密度信息存储技术，它利用STM针尖产生的隧道电流或场发射电流的焦耳热效应，诱导二元电荷转移复合物材料发生局域热化学气化分解反应，使低沸点组分从样品表面逸出，形成纳米尺度的信息孔。

Second, the main products the company led to disinfection products, mainly include:84 disinfectant, Lysol water, iodophor, and strengthen glutaraldehyde, disinfection tablets, long-ching, Al iodine, L-1-type measuring chlorine test strip , L-2 type Glutaraldehyde indicator, 121 , 132 pressure steam sterilization chemical indicator, pressure sterilization chemical instruction tape, ultraviolet intensity of instruction cards, Sanger disinfectant equipment, the Su-Ying disinfectant, gas dual-use high-pressure water washing machine and many other disinfection products and toilet cleaning, high-grade porcelain Jie Ling, glass of water, power washing supplies powder decontamination involving medicine, day two of the field.

公司以消毒制品为主导，主要有：利尔康84消毒液、来苏水、碘伏、强化戊二醛、消毒片、久清、艾尔碘、L-1型测氯试纸、L-2型戊二醛指示卡、121℃、132℃压力蒸气灭菌化学指示卡、压力灭菌化学指示胶带、紫外线强度指示卡、森格尔器械消毒液、樱之素消毒液、气水两用高压冲洗枪等多种消毒制品和厕洁、高档洁瓷灵、玻璃水、强力去污粉等洗涤用品涉及医药、日化两大领域。

Lysosome is a reservoir that contains digestive enzymes. These kind of enzymes can break down worn-out organelles and digest foreign substances.

溶J体是一个具有消化能力化学物的储存库，这些化学物能分解损耗了的细胞器和消化外来的物质。

Based on present experimental formulae to calculate martensite starting temperature Ms of various steel grades, with analysis on the effect of alloying elements on Ms of steel, the experiential formula Ms = 550-330C-35Mn-17Ni-12Cr-21Mo-10Cu-5W-10Si-0Ti+10Co+30Al for maraging stainless steel is given in this paper.

本文依据马氏体时效不锈钢的化学成分及实测Ms温度，利用现有的Ms温度计算公式进行分析计算，提出新的马氏体时效不锈钢的Ms温度计算公式。1 现有Ms温度经验计算公式的分析影响钢的Ms点的因素很多，如化学成分、淬火冷却速度、奥氏体化条件、形变等[2 ] 。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。