查询词典 frequencies

This opens the possibility of a new type of cross modulation, where a beam of light at one of the absorption frequencies can turn on or off the light of the other.

这就可能制造出新型的交叉调制器，一束有特定吸收频率的激光能打开或关闭其它的光。

The effect of this is to reduce the actual cross-sectional area of the cable at 15kHz to less than 75% of that at low frequencies.

此举的效果是降低实际截面积的电缆15khz至低于75 ％，在低频率。

This research uses several groups of different cutoff frequencies of low-pass filters for testing to choose the best frequency.

本研究采用几组不同截止频率的低通滤波器进行测试，以选择最佳频率。

The methods of the first-and second-order cyclic statistics-based hybrid and the first-and third-order cyclic statistics-based hybrid have been proposed. Using the first order cyclic statistics, the frequencies of harmonics corresponding to nonzero mean multiplicative noise were obtained. Then the mean of multiplicative noise can be estimated. With this, harmonics can be retrieved by second or third order cyclic statistics.

提出了基于一阶、二阶循环统计量的混合方法和基于一阶、三阶循环统计量的混合方法，即先利用一阶循环统计量得到对应非零均值乘性噪声的谐波频率，再求出与谐波频率对应的乘性噪声均值，去均值后用二阶或三阶循环统计量来恢复谐波。

Thus investigating the influence of the delamination on natural frequencies of laminated structures will be useful to non-destructive testing method.

因此，研究脱层对层合材料构件固有频率的影响，将对构件的无损检测提供必要的依据。

The CPT values in the affected leg in patient group were significant higher than those in control group at all frequencies. The CPT values in contralateral leg in patient group were significant higher than those in control group at 5Hz whereas there were no significant differences at 250Hz and 2000Hz. The CPT values in affected leg in patient group were significant higher than those in contralateral leg at 250Hz and 2000Hz whereas there were no significant differences at 5Hz. All the CPT values showed the same linear decrease from the dermatome of the compressed root to the dermatomes of the contralateral neighbor dematom.

在用CPT监测8例腰骶单神经根病组患侧和健侧及与正常对照组的不同直径感觉神经纤维功能的研究中发现压迫皮节和其临近皮节的所有频率CPT值无任何显著性差别；患者压迫侧的2000Hz及250HzCPT值及压迫侧和对侧的5HzCPT值与正常对照组都有显著性差别；患者组5HzCPT值患侧和对侧无差别，其他两组均有显著性差别；不管有无显著性差别，神经根病患者组各皮节三频率CPT值均按照压迫皮节，临近皮节，压迫对侧皮节，压迫对侧临近皮节的顺序减小，说明在腰骶单神经根病中Aβ纤维及Aδ纤维及无髓C纤维均受累。

When outcome variable is measured in the dichotomous form, the descriptive indices are often indicated for frequencies, percentages or proportions, correspondingly, the statistical inference methods are mainly χ2 test or the two-variable relationship analysis.

分组变量和结局变量均为二分类变量的研究在医学研究中是比较常见的，结局变量表示为二分类的形式，研究者通常采用频数、百分比或比例等统计指标描述，相应的统计推断方法主要为χ2检验或两变量之间的关联性分析。

The results denote that the diatomic molecule bond lengths and vibrational frequencies computed by using of an ab-initio method agree well with experimental spectroscopic data.

结果表明：用从头算法计算的双原子分子的键长和振动频率与实验光谱数据吻合较好。

Ceramic composite materials with dielectric constant less than 6 at frequencies from 100 Hz to 10,000 MHz

在100赫兹至10000赫兹的频率下，介电常数小于6的陶瓷复合材料

In this system, the different characteristic and directivity of the different frequencies audio signals while propagating in the air are tested and analyzed.

利用该系统对不同频率声频信号在传输过程中的变化特征及其指向性进行了实验研究和对比分析。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。