hf的例句大全

The design features of the WGC-01 A microprocessor-based HF signal transmission system

WGC-01A型微机高频信号传输装置的设计特点

This paper mainly deals with DSP realization of data transmission of good reliability in HF and VHP communication system.

本论文研究了使用数字信号处理（DSP）技术在短波、超短波信道上实现高可靠性的数据传输。

The structures of the derivatives of 1,2,3,4-tetrahydroquiazoline ( THQ) are optimized at the HF/ 6-31G ( d) level. Vibrational frequency analysis is performed at the same level to ensure that the optimized geometry is stable.

用HF/6-31G（d）方法优化了1,2,3,4-四氢喹唑啉（THQ）衍生物的结构，并进行了频率分析以保证优化的结构是稳定的。

The HF+ RSG group added rosiglitazone by gastric gavage, mice in the other two groups were administered with physiologic saline of the same volume.

罗格列酮干预组增加罗格列酮灌胃，其余两组给予等量生理盐水。

Objective To inhibit phospholamban ( PLN) mRNA expression and improve cardiac function of heart failure ( HF) rats by RNA interference ( RNAi).

目的利用RNA干扰（RNAi）技术抑制心力衰竭（心衰）大鼠受磷蛋白（PLN）mRNA的表达，改善心脏功能。

The industrial synthesis methods of SiF_4 mainly have sulfuric acid method, metal hexafluorosilicate pyrogenetic method and Si-HF direct synthesis method.

SiF4的工业生产方法主要有硫酸法、六氟硅酸盐热解法和Si-HF直接合成法3种。

This paper briefly introduced some recent progress on intermetallic NiAl-Cr ( Mo, Hf ) alloy ( JJ-3 ).

简要介绍了金属间化合物 NiAl -Cr ( Mo, Hf ) 合金 ( JJ -3 ) 的最新研究进展.

On the basis of HF development we could divide HF cycle into four stages, i.e. anagen, catagen, telogen and a putative active exogen.

根据毛囊的发育和生长可将毛囊循环周期分为四个阶段，即生长期（anagen）、退化期（catagen）、静止期（telogen）和一个推测的活跃脱毛期（exogen）[17,36]。

" In the interim, patients with HF requiring antidepressant medication may need to be monitored more closely. "

“ 需要抗抑郁药治疗的心衰患者暂时可能需要更密切的监护. ”

The movable structures are successfully released by 40 % buffer HF solution.

可动器件在40%的缓冲氢氟酸溶液中得到成功释放.

The Frequency Shift Keying modulation is widely used in HF digital communication.

移频键控是短波数字通信中常用的一种调制方式.

This paper describes a series of new HF complexing liquid fluorinating agents , and there usage.

介绍了氟化氢络合液类新的氟化试剂及其用途,该类氟化剂为液态,便于储藏、输.

This paper describes a series of new HF complexing liquid agents , and there usage.

介绍了氟化氢络合液类新的氟化试剂及其用途,该类氟化剂为液态, 便于储藏、运输.

Be sure your Gunn diode does not oscillate at audio or HF as well.

确信你的耿氏二极管没有同时在音频或高频振荡.

A full digital demodulation scheme is proposed for HF QAM signal.

文中针对短波高速QAM信号,提出并实现了一种全数字的解调方案.

Hydrofluoric acid ( HF ) is an extremely powerful inorganic acid and a vigorous dehydrating agent.

氢氟酸 是一种极强的无机酸和强脱水剂.

Experiment using HF-fumigation was conducted to study effect of hydrogen fluoride on rubber tree saplings.

通过熏气模拟试验研究氟化氢气体对橡胶盆栽幼苗的影响.

It is especially suitable for replacing HF electronic ballast of no-electrode fluorescent lamp.

尤其适用于无电极荧火灯的高频电子镇流器的更新.

A continuous reveree-phfise chrornatographic separation procedure for Zr and Hf was offered.

提出了连续 反相 色层分离锆、铪新方法.

HF Han Guan; Bicycles and spare parts; Metal products.

高频焊管; 自行车及零配件; 金属制品.