氟

Fluorine is the most electronegative of all elements.

氟是电负性最强的元素。

The properties of the Yb〓 and Dy〓, which has important value on researching and application, are studied by measuring the absorption and emission spectrum.

然后通过测得的掺Dy〓和Yb〓的氟锆酸盐玻璃的吸收和发射光谱，对具有重要研究和应用价值的稀土离子Yb〓和Dy〓进行了研究。

Result: The incidence of enamel opague spot in the treatment group was significantly lower than that in the control group.

结果：经氟化处理的牙齿，釉白斑的发生率低于对照组，有显著性差异。

AIM: To compare the separation ability of different neutral cyclodextrins and their derivatives on ofloxacin enantiomer by capillary electrophoresis and to explore the possible mechanisms of chiral separation.

目的：比较在毛细管电泳中不同中性环糊精及其衍生物对氧氟沙星对映体的手性拆分能力，并提出可能的手性识别机制。

IMPLICATIONS: A rapid increase in the concentration of sevoflurane induces epileptiform encephalogram with tachycardia.

七氟醚快速增加浓度可诱发癫痫样脑电图伴心动过速。

The company was founded in 2002, is specialized in the production of central air-conditioning end-product manufacturers, the existing fluoride embedded systems, water systems products sales coverage throughout the country.

本公司创建于二00二年，是国内专业从事生产中央空调末端产品的厂家，现有嵌入式氟系统、水系统系列产品销售覆盖全国各地。

Enzyme distribution experiment results indicated that the hexaflumuron degrading enzyme of strain FLN-1 was an endoenzyme.

酶的定域试验表明，降解氟铃脲的酶为胞内酶。

Methods Eukaryotic expression plasmid pCMVCD was constructed , and identified by re2 striction endoenzyme digestion. CD gene was transfected into NSCs from new2born Wistar rats using Lipofec2tamine2000. Positive clones (named NSCs/ CD cells) were screened by G418 presence. 52Fluorocytosine (52FC) ad2ministration of different concentrations were incubated with NSCs/ CD cells. NSCs/ CD cells viability ratios were mea2 sured by MTT assay.

通过构建真核表达质粒pCMVCD ，限制性内切酶消化鉴定后，采用Lipofectamine 2000 脂质体介导法转染新生大鼠室管膜下区神经干细胞(Neural stemcells ， NSCs)，G418 筛选阳性克隆，加入不同浓度的52氟胞嘧啶(52Flourocytosine ， 52FC)，MTT比色法测定NSCs的生存率。

Results Stable drug-resistant SW1990/GZ cell strain was established by culturing with gemcitabine for 9 months. The morphology and growth characteristics of the cell strain changed remarkably. The cells shrinked and became rounder; its endoplasm expanded; granular substances increased; and the doubling-time was prolonged. Resistance of the cell line to gemcitabine, fluorouracil, adriamycin, and mitomycin significantly increased. The TrxR activity of the drug-resistant cells was increased markedly.

结果 药物培养9个月后，得到稳定传代的SW1990/GZ耐药细胞株；其形态学、生长特征等均发生了明显变化，细胞变圆、体积缩小、内质网扩张、颗粒样物质增多及细胞倍增时间延长；对吉西他滨、5-氟尿嘧啶、阿霉素和丝裂霉素的耐药性均显著增加；耐药细胞的TrxR活性也明显增高。

Objective:To establish a bacterial endotoxin method for and norfloxacin injection.

目的：建立谷氨酸诺氟沙星注射液的细菌内毒素检查法。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。