详细研究了氟代苯基硼酸和多芳基硼酸的合成及其工艺改进。
The synthesis of fluoro-substituted phenylboronic acid, and multiarylboronic acid and their process improvement were studied in detail.
因其化学惰性,氟代柔韧线缆可以用于医疗植入。
Being chemically inert, FluoroFlex can be used for medical implantation.
氟代甲酰胺的氢迁移势垒低于甲酰胺的氢迁移势垒。
The potential energy barriers of hydrogen migration of the N-fluoro-formamide are lower than that of formamide.
同时简述全氟代聚酰亚胺的合成、性能及应用前景。
At the same time, the synthesis, properties and application of perfluorinated polyimides are also discussed.
氟代喹诺酮和大环内酯抗菌剂都与QT间期的延长有关。
Fluoroquinolones and macrolide antimicrobial agents have both been associated with prolongation of the QT interval.
用分子动力学模拟方法,计算了氟代硼酸锂玻璃的电导率。
The conductivities in Fluoroborate glasses were calculated by molecular dynamics simulation method at near and higher than glass transition temperatures.
氟代柔韧线缆优良的介电性质使其非常适合于数据和音频应用。
FluoroFlex's excellent dielectric properties also make it ideal for data and audio applications.
新型有效定位装置的应用使简易氟代拷贝的结合体引导脊柱内置物的安置。
The use of newly available positioning devices has allowed easy incorporation of fluoroscopy to guide the placement of spinal instrumentation.
所述含硼化合物和碘源在碱的存在下与氟代醇反应物和环氧烷烃反应物混合。
The boron compound and iodine source are combined with reactants of a fluoroalcohol and an alkylene oxide in the presence of a base.
氟代柔韧线缆是多用途产品,广泛适合于航空航天,电脑以及医疗电子设备。
FluoroFlex is highly versatile and suitable for broad usage in aerospace, computer and medical electronics.
本文综述了氟代糖合成的新进展及利用选择性氟化合成具有生物活性的物质。
A review with 26 refs. on the synthesis of fluorinated carbohydrates by selective fluorination.
介绍了含氟芳香族化合物的几种合成方法,叙述了卤交换氟代中的几个关键技术。
Several synthetic methods to synthesize fluorine - containing aroma tic compounds are introduced, and some key techniques in halo exchange and fluor o substitution are put forward.
结果表明,与具有非平面结构的乙烯阳离子不同,六种氟代乙烯阳离子都只具有平面结构;
Geometry optimization calculations indicate that all the six fluorinated ethylene cations have planar structures, in contrast with the non planar D2 structure of the ethylene cation.
探讨18F-氟代脱氧葡萄糖正电子成像术(18F-FDGPET)评价鼻咽癌放疗疗效的价值。
To explore the value of positron emission tomography(PET)using 18F-fluorodexyglucose(18F-FDG)in determining the therapeutic effect of irradiation on patients with nasopharyngeal carcinoma.
采用量子化学MNDO法,计算了氟代甲酰胺和N—氟代甲酰胺的1,2—氢迁移异构化反应势能面上的反应路径。
The reaction pathways of 1,2-hydrogen migration isomerization on the potential energy face have been calculated by the quantum chemistry, MNDO method.
结论鞘内注射氟代柠檬酸能明显减轻骨癌痛小鼠机械痛敏和热痛敏,提示星形胶质细胞在脊髓水平参与疼痛信息传递。
Conclusion Intrathecal FC can reduce the mechanical and heat hyperalgesia in mice with bone cancer pain, and the astrocytes may play a role in the nociceptive transmission at the spinal level.
目的总结肿瘤患者应用18f-氟代脱氧葡萄糖(18f - FDG)进行PET -CT显像检查的护理要点。
Objective to summarize the key points of nursing patients with malignant tumor undergoing positron emission tomography (PET) -ct imaging.
计算结果表明,氟代和氯代磷杂硫烯酮为累积双烯结构,磷杂硫烯酮的异构体含CP三键,所有分子都具有弯曲几何构型。
The results of calculation show that fluophosphathioketene and chlorophasphatioketene presents cumulative double bonds, isomer presents C(P)triple bonds, all of molecules have a trans-bent geometries.
说出来吓死你,死尸会释放出苯,二氯二氟代甲烷等一系列奇怪的化学物质。然而也正是这些物质帮助了科学家找到各种隐秘的墓穴。
Dead bodies emit a surprising array of chemicals, from benzene to freon, which can help forensic scientists find clandestine graves.
从氟代甲苯出发,以醋酸为溶剂,采用液相空气氧化法,在钴锰盐和1,1,2,2-四溴乙烷催化体系存在下,合成了氟代苯甲酸,采用升华方法进行精制。
Fluorobenzoic acids were prepared from fluorotoluenes through liquid phase air oxidation with acetic acid as solvent and Co~(2+)-Mn~(2+)-1, 1,2,2-tetrabromoethane as catalyst.
我们需要预防性给予抗生素药物,包括合理的药物和给药途径,建议在手术前开始频繁使用第四代氟喹诺酮类抗生素眼药水滴眼。
We need to provide antibiotic prophylaxis with an appropriate agent and administration regimen. We recommend a fourth-generation fluoroquinolone started with frequent dosing before surgery.
从人类活动中释放出来的物质(包括氟氯烃和卤代烷哈龙)同臭氧层中的臭氧分子发生化学变化,导致其破坏。
The destruction of ozone molecules in the ozone layer by chemical reaction with materials released from human activities, including chlorofluorocarbons and halons.
设计发明了在数据通讯和光学波导用作下一代光学纤维的新氟素尸。
Desighed and invented new fluoroplastics which can used as next generation optical fibers for data communication and optical waveguide.
方法应用组织化学、酶组织化学和电子显微分析等手段观察氟对体外培养的鼠第一代成骨细胞的影晌。
Methods The influence of fluoride on the rat first passage osteoblast were evaluated by histochemistry, enzyme histochemistry and electron microanalysis in vitro.
然后以七氟谜用药累积记录为研究对象,进行了数值计算,算得药代动力学模型和吸入药量模型与实际测量数据的相关系数分别为0。
Then the drug accumulative records of SEV are research objects, we carry out numeral value calculation, and get the relative coefficients between the models and practical measurable date which are 0.
然后以七氟谜用药累积记录为研究对象,进行了数值计算,算得药代动力学模型和吸入药量模型与实际测量数据的相关系数分别为0。
Then the drug accumulative records of SEV are research objects, we carry out numeral value calculation, and get the relative coefficients between the models and practical measurable date which are 0.
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