查询词典 HF

The samples was digested by HNO-3-HCl-H-2O-2-HF,and then boric acid solution was added.The method w...

各元素的检出限在0.0001~0.0141mg/L之间，回收率在90%~110%之间，应用建立的方法对北京市的颗粒物膜样品进行了分析。

The attenuation formulae of HF bridge circuit with phase-ground coupling and adjacent phase impact or not are derived in this paper.

本文导出了不考虑邻相影响和考虑相邻影响条件下的相地耦合高频桥路衰减公式。

RF showed significant contribution on BUD variation and genotype showed the same contribution on MNed BNC and BUD level but the effects were relatively small compared with that of FA.

利用胞质分裂阻断微核技术分析了叶酸（20、200nmol／L即LF、HF）和核黄素（1、500nmol／L即LR、HR）不同浓度组合以及MTHFR C677T多态性对9d培养的人淋巴细胞基因组稳定性的影响。

The adsorption and reaction process of isobutane and butene were investigated by using in-situ IR, Reaction-MS and Adsorption methods.

利用HF酸溶解以及用二氯甲烷进行萃取等方法，对失活催化剂的性质进行了细致的研究。

The mechanism of cycloaddition reaction between singlet carbene and Formylchloride has been investigated by using ab initio MO theory of the restricted Hartree-Fock at HF/3-21G~* level.

用限制的H artree-Fock从头算分子轨道理论研究了单重态卡宾与甲酰氯环加成反应的机理。

The levels of CgA and BNP were measured and compared in patients with HF and control group.

测定65例心力衰竭患者血液嗜铬粒蛋白A、B型利钠肽水平并和25例正常对照组进行对照。

Our results demonstrated that chloroquine can enhance and sustain exogenous gene expression in vivo without side effect under our experimental conditions.

实验结果表明一定浓度的氯喹能安全，有效的提高hFⅨ在小鼠体内的表达。

Myocardial ATP content and gene expression of ghrelin mRNA in EGB group were significantly higher than those in HF group, and were closed to those of control group.

与正常组和模型组比较，银杏组血浆中的ghrelin水平显著增高；心肌组织中的ATP含量及ghrelin mRNA的表达均明显高于模型组，接近正常组。

The closed shell HF SCF calculations have been carried out for the electron transfer systems corresponding to different values of R, then the Koopmans' theorem is applied to estimate the energy level splitting △, and the relatonship between △ and R has been obtained.

对该电子转移体系进行闭壳层的单点计算，并用Koopmans定理计算了体系的分裂能△，得到△随线性反应坐标R的变化关系。

The HF-3, with conservatively estimated range of 300km, has been under development for nearly 10 years.

保守估计射程为300km的雄风-3型导弹已经进行了长达10年的研究。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！