查询词典 HF

The test experiment illustrates using the HSP50216 in far-distance HF ground wave radar show that it improves...

实验证明，HSP50216的应用大大提高短波接收系统的灵活性和技术指标。

The simulation of bistatic/multistatic HF ground wave radar echo is analyzed.

分析了双／多基地高频地波雷达回波信号的仿真过程。

The bias of calibration results is analyzed by numerical simulation, and its application in HF ground wave radar OSMAR2000 shows this algorithm effective and credible.

通过对模拟的海洋回波的数据进行处理，分析算法的幅相误差校准值的估计偏差。将此算法应用在实测数据处理中，验证了其有效性及可靠性。

An algorithm of HF ground wave radar array calibration for amplitude and phase errors based on sea-echo is proposed in this paper.

摘要针对现有无源校准方法在高频地波雷达中失效的问题，该文提出了一种基于海洋回波的高频地波雷达阵列幅相误差校准算法。

Applying atomic many-body theory to analyse the Goldston diagrams of effective Hamiltonian and wave operator about electron-electron correlation for open shell atoms, we use a simple method to evaluate the effective Hamiltonian and calculate the correlation effectes of Corbon with HFS model as a zeroth order approximation. Making contrasts with the experiment and the calculation based on HF model we get pleased results.

应用原子多体理论对开壳层原子中电子关联效应的有效哈密顿量及波算符的Goldston图进行了分析，在此基础上得到了计算有效哈密顿量的简单方法；以HFS模型为零级近似对中性碳原子基态的关联效应进行了计算并通过与实验结果及其他文献基于HF模型进行的计算相比较，得到了令人满意的结论。

At last, HF/4-31G means was used to calculate the model molecules of the 4 complexes, the calculated results revealed the relationships between the bioactivity of Huperzine A analogues and the Mullicken Bonding Populations, Lowest Unoccupied Molecular Orbital energies of HupA analogues.

四个复合物模型分子的量子化学研究结果揭示了化合物的生物活性与复合物中化合物和酶之间的Mullicken键级、活性状态化合物的LUMO轨道能量等量子化学参数之间的联系，初步指出了阳离子-π作用的重要性。

Chapter 5 covered the quantum chemistry study of the model molecule (410 atoms) of HupA- Acetylcolinesterase complex at HF/4-31G level with point charge model (1929 point charges) to simulate the environment effect on complex active site.

第五章：用HF/4-31G量子化学方法对单分子状态石杉碱甲、活化状态的石杉碱甲以及石杉碱甲-乙酰胆碱酯酶复合物的模型体系（410原子，1929个点电荷）进行了从头计算研究，指认了对于形成稳定复合物贡献最大的石杉碱甲分子的基团和酶的氨基酸残基，揭示了活性位点中水分子的重要作用。

In this research, hybridize the HF and LF numerical softwares to simulate the antenna radiations under large structure is the main work.

中文摘要本研究主要工作是利用高低频的电磁软体模拟天线在超大型结构体下的辐射。

ObjectiveTo explore the effects of HG Granule on collagen and Hyp in the liver of HF model rats.

目的研究HG颗粒对CCl4 致肝纤维化大鼠肝脏胶原纤维及羟脯氨酸含量的影响。

He actually has hypercalcemia,which is being lowered to normal by the hf.

他原本有高血钙被氢氟酸降低到了正常水准

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。