frequencies的例句大全

Audiometric zero level at infrasonic frequencies

次声频段的听力零级

The audiometric zero level has been measured in the frequency range 2-100 Hz, with particular attention to frequencies below 25 Hz. A Direct Determination for Hearing Threshold of Bone Conduction by Using Impedance Head

本文对低频段的听力零级进行了测量，得到了两个不同测试组在2Hz&100Hz频率段的阈值曲线。纯音骨导听力零级的测定

The urgency of the problem is underlined by the fact that US Federal Communications Commission and similar agencies in other countries have already started to auction off frequencies close to the 23.8 GHz frequency to future 5G network providers.

美国联邦通信委员会和其他国家的类似机构已开始拍卖23.8千兆赫附近的频率，以供未来的5G网络服务商使用，使得这一问题非常紧迫。

Aseptic meningitis has been reported at widely varying frequencies following different mumps vaccines.

无菌性脑膜炎一直有报道，但其发生率因所用疫苗的不同有很大变异。

Effect of Different Frequencies of Electroacupuncture on Somatostatin mRNA Expression in Rats' Amygdaloid Nucleus

不同频率电针对大鼠杏仁核内生长抑素mRNA表达的影响

Objective To explore the genetic polymorphism and the distribution of allelic frequencies of δ aminolevulinic acid dehydratase ( ALAD)( E.C.4.2.1.24) in Uighur and Yi population in China.

目的探讨中国维吾尔族、彝族人群δ氨基γ酮戊酸脱水酶（ALAD）基因多态性和等位基因的分布规律。

Objective In order to establish human platelet alloantigen 2,3,5 systems genotyping methods and detect the allele frequencies of HPA 2,3,5 systems in the population.

目的建立血小板同种抗原2、3、5系统基因分型方法，以检测人群中HPA-2、3、5系统基因频率。

The acoustic dispersion of rocks is investigated with experimental method samples of sandstone and shale are measured at different frequencies with ultrasonic pulse penetration method, and then the acoustic dispersions are analyzed.

对岩石声频散进行了实验研究，用不同频率的声学探头使用超声波脉冲穿透法对砂岩和泥岩样品进行了测量，并分析了两者的频散现象。

The higher accuracy of measuring the Doppler frequencies, the less error of the aperture distribution.

多普勒频率的测频精度愈高，反演口径分布的误差愈小。

Without the consideration of the accumulation of heat, the charge frequencies from 1 Hz to 1 000 Hz have no influence the characteristics of samples.

不计热量积累时1～1000Hz的充放电频率不影响电容器性能。

The geometrical structure of the doubly negative charged closo boron hydride B 15 H 2-15 ( D 3h) was optimized at the HF/ 6-31G level, and its energies and normal mode vibrational frequencies were computed at the same level by using abinitio molecular theory.

利用量子化学从头算方法在HF／6－31G水平上，优化计算了带两个负电荷的封闭型硼烷B15H2－15（D3h）的结构，能量和正则振动频率。

Methods based on spatial frequencies evaluate the coefficients of the autocorrelation function of the texture.

基于空间频率的方法估计纹理的自相关函数.

Effects of different training frequencies on vo_ ( 2max), left ventricular functions and submaximal work capacity

不同训练频率对最大吸氧量和左室功能及亚极量运动能力的影响

Influence of Age Using Three Frequencies Probe Tone on Acoustic Conductance and Acoustic Susceptance of Tympanometry

年龄因素对不同频率探测音声导值和声纳值测试结果的影响

Calculating the natural frequencies of overhead conveyer structure by riccati's translative-matrix method

用Riccati传递矩阵法计算悬挂输送机金属结构的固有频率

Characteristics of the scattering parameters for two parallel microstrip lines are analyzed based on microwave network principle. Relation between the frequencies where crests and troughs occur in the insertion loss or the far-end crosstalk and propagating delays of odd-and even-modes, the parallel length is deduced.

根据微波网络理论，对两根平行微带线的散射参数进行了研究，推导出了插入损耗和远端串扰的幅频曲线中波峰、波谷点频率与奇偶模的传播时延、互连线长的关系。

Study of oscillating combustion for solid propellant at a range of low frequencies with a h-burner

用H燃烧器研究推进剂低频振荡燃烧特性

Analysis for stiffness on the bend vibration natural frequencies of a helicopter tail drive system

刚度对直升机尾传动系统弯曲振动固有频率影响的分析

The data of 5 ionospheric vertical sounding stations before 4 earthquakes in Japan are analyzed. It is found that most of the critical frequencies of the E sporadic layer tended to decrease and the only few tended to increase around the epicenters before and after the earthquakes.

分析日本4次地震前5个电离层垂测站资料，发现地震前后震中附近夜间电离层偶发E层的临界频率f0ES值多数呈下降趋势，少数呈增加趋势。

No significant differences of genotype and allele frequencies between the matched groups were found.

各相匹配组间比较未发现基因型和等位基因频率的显著性差异。