查询词典 attenuation

It shows that the presence of concentration gradient in the process of dissolving is the main factor influencing the underwater sound attenuation.

结果表明，梯度高分子溶液浓度梯度的形成是声衰减效果好坏的关键。

The transfer standards were two fixed attenuators with a nominal attenuation of 60dB and 100dB respectively and one switchable attenuator of 100dB.

比对结果是：60dB衰减量的最大差值为0.064dB，100dB衰减量的最大差值为0.125dB。

The results show that this attenuator, which is 12mm×8mm×0.5mm and works at low temperature, can be used alone or integrated into HTS system to decrease system volume and weight. Insertion loss of this attenuator is about 0.2dB, whose magnitude is one order lower than that of a conventional attenuator. Attenuation step about 0.01dB can be achieved, which is 1~2 orders lower in magnitude than conventional attenuators.

主要结论如下：光控高温超导微波可变衰减器在液氮温区工作，电路尺寸为12mm×8mm×0.5mm，可单独使用也可集成于高温超导系统中，可大幅减小系统的体积与质量；高温超导衰减器的插损小于0.2dB，比常规衰减器低1个量级；高温超导衰减器的可变衰减步进值小于0.01dB，比常规衰减器低1~2个量级。

Based on the attenuation model of plume source, this paper studies the location of the plume source using maximum likelihood estimation algorithm and direct trilateration algorithm.

本文基于气体污染源浓度衰减模型，首次采用极大似然预估算法、直接三边测距算法对气体污染源定位进行了对比研究。

For the x=0.03 sample, both the minimum of sound velocity and attenuation peaks shift to a lower temperature.

在低温下，出现了另一个超声衰减峰，它的出现归结为反铁磁相与顺磁相之间的相分离现象。

For the x=0.03 sample, both the minimum of sound velocity and attenuation peaks shift to a lower temperature. The results indicate that the charge ordering and CE-type AFM state in Nd0.5Ca0.5MnO3 are both partially suppressed by replacing Mn with Al.

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According to the designing demands, such as bandwidth, stop-band attenuation, the optimization software can optimize the diplexers.

此软件能根据一定的技术指标要求，优化出双工器最佳参数。

Therefore the near-source attenuation of the ground motion looks like slow. The co-seismic faulting was dominated by strike-slip motion with the oblique normal fault component.

地震发生时的断层运动是兼有倾斜正断层运动的走滑破裂和错动，震源断层附近的垂直地面运动非常强烈。

Note: The position of these ground locators can be adjusted later to tweak the falloff of the shadow attenuation.

注意：那些地面上的定位器的位置能稍后时被调整去配合阴影衰减的散开。

The number of multiplications involved in the calculation of attenuation weights is reduced from O to O .

这种搜索流方法完全消除了近年来最新提出的一种搜索流方法中的计算冗余度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。