查询词典 attenuation

HST is characterized by siliceous limestone-bearing calcareous gravity current sediments, which have the sequences of increased, and incrassate limestone and decreasing and attenuation siliceous rock upwards.

其中孤台层序发育主要受控于相对海平面变化和碳酸盐生产率，台盆层序发育则受构造活动、海平面变化、台缘重力流等因素的综合影响，具多物源特点。

Based on the current linear attenuation model and the idea of minimum arcing voltage in inductive intrinsically safe circuit , the authors establish the principle for choosing L/R ratio assuredly by using the intrinsic safety discriminant of inductive circuit and express the discharge time with known circuit parameters.

基于电感性本质安全电路放电电流线性衰减模型，引入最小建弧电压的概念，得到了放电时间不含未知参数的表达式，利用电感电路的本质安全性能判别式，确定了电感电阻比 L/R的选取原

First the article elaborated the inelasticity and the hysteresis of original accountant supervision system in the day which the market economy flourishes more and more. The surveillance function attenuation is unable to guarantee the market economy the healthy development.

首先论述了市场经济日益发展的今天，原有会计监督制度的不适应性和滞后性，监督职能的弱化无法保证市场经济的健康发展。

Making use of states transformation, states feedback and the disturbance redefinition, this paper defines linear systems sliding mode disturbance attenuation problem Q 2, which can be resolved by solving Riccati inequation.

通过状态变换和状态反馈以及干扰重定义，提出了线性系统的滑模干扰抑制问题Q2。问题Q2 可以通过解Riccati不等式得以解决。

The diffraction attenuation of infinite thin sound barriers to point sources are calculated,and the influences of Sound source and receiver positions,noise frequency and reflection from the ground are ana- lyzed.

数值模拟方法主要借助于计算机计算，不受实地条件的影响，因而能快速得出分析结果，为声屏障的设计提供参考依据，以便探讨和设计更多的高效声屏障形式。

The main reason is that the condition ismore complicated in open field,and measuring result is much more easily influenced bysome kinds of clutters,like atmosphere attenuation,cloud or fog,the fluctuating of scaleobject and ground clutter and so on.So these factors should be taken into account inpractical measuring,and make some amending processing.

主要原因是外场中情况复杂，测量结果受各种杂波影响较大，如大气衰减、云或雾、定标金属球的波动、地面杂波等，因此在实际测量中应考虑这些因素，并做出相应的修正处理。

Studied the mechanism of interior loss factor of structral subsystems and accoustic subsystems. Studied the composing and methods of calculating interior loss factor of some normal subsystems like beams and plates. And analysised how to get the acoustic subsystem interior loss factor from sound absorption coefficient and air attenuation coefficient while no actural model of vehicle to test.

三、分析结构元件和声场内部损耗因子机理，研究将SEA方法应用到车辆系统时对于一些常见梁板子系统的内部损耗因子的构成和计算方法，以及在没有实际车型无法进行实测时，根据表面吸声系数和空气空间能量衰减常数进行理论计算声腔内损耗因子的方法，并利用SANTANA2000车型的实例进行实测对照。

This dissertation has studied various architectures of Sigma-Delta modulator systematically. According to power dissipation, stability and circuit implementation, a 2-2 cascade architecture is introduced. Oversampling ratio is 32. The attenuation factors of each integrator and interstage coefficients are obtained from behavioral simulation.

本论文系统地研究了∑A调制器的各种体系结构，根据功耗、稳定性以及电路实现等方面综合考虑，∑A调制器采用级联2—2结构，过采样比为32，并通过行为级仿真确定了积分器的增益衰减因子及级间耦合系数。

In this paper, authors research the effects of the attenuation coefficient choice of the Gabor transform window function and sampling interval on signal resolution.

该文研究了Gabor变换窗函数衰减系数选择正确与否和采样间隔对信号分辨率的影响。

Estimation of the attenuation law is based on the inverse transfer function of the object approximation in the frequency domain.

估算的衰减规律，是基于逆传递函数的对象近似的频域。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。