衰减的

Also,the pulse velocity of drilling fluid declined with increase of gas content.The drilling fluid pulse transmitting up and down along well bore had refraction and reflection components similar to damped oscillation at the boundary of system.

脉冲传输速度对含气量非常敏感，随着含气量的增加，传输速度迅速下降；沿井筒往复传播的钻井液脉冲在系统边界处将产生折射和反射，类似于阻尼振荡；钻井液粘度是影响脉冲信号衰减速度的一个重要因素。

Using the Hilbert transform envelope demodulation,analyzes the free damped torsion vibration signal which produced by the box of liquid milk and calculates the damping coefficient of system,compares it with standard sample to judge the quality of product.

采用Hilbert变换包络解调方法，对液态奶盒产生的自由衰减扭转振动信号进行分析计算，求出系统的阻尼系数，并和标准样本比较以判断产品质量的好坏。

A necessary and sufficient exponential stability theorem with respect to a constant decay degree for general nonlinear dynamical systems is presented.

首先给出了一般非线性动态系统的关于常衰减度的指数稳定性充分必要定理，接着探讨了新型指数稳定性定理在线性系统稳定性分析中的应用。

A fitting curve between the decay time constant and the film thickness of YBCO was obtained, and the film thickness can be obtained from the fitting.

另外还作出了YBCO薄膜的薄膜厚度与衰减时间常量之间的关系曲线，提出了测量YBCO薄膜厚度的一种新方法。

Thedata was obtained by experiment and linear regression method was used to fit the penetration ratio of X2ray in explosiveunder different conditions. The decay law was obtained by analyzing the fitted results.

通过试验测定，利用线性回归方法对不同情况下测得的X 射线在某炸药中的穿透率进行拟合，分析拟合结果得出X 射线在某炸药中的衰减规律。

The variation of the factors that influence the test results as well as the declination of vertical effective stress with depth are analysed.

分析了影响试验数据的各种因素的变化，以及在这些因素作用下垂直有效应力沿深度方向的衰减规律。

The measured results show that the shape of the yield curves changes with increasing illumination time due to the faster quantum-yield degradation rate of low energy photons.

基于修正后的反射式阴极量子效率公式对这种变化进行了理论分析，发现与光电子的谷间散射和阴极衰减过程中表面势垒形状的变化有关。

In Sweden we now talk about civilized depopulation," says Mats Johansson of the Royal Technical Institute in Stockholm."

斯德哥尔摩皇家技术学院的 Mats Johansson 说「在瑞典我们现在讨论文明的人口衰减，我们必需确定我们所留下的老人被照顾

By simulation and derivation,the degree of nodes in this model...

通过计算机模拟和公式推导，该模型中节点的度分布显示出幂律尾部的特性，而且其衰减指数在一定条件下与实证研究结果是一致的。

QDCSM can explain the properties of nuclear force quanlitatively, but can not reproduce the precise properties of the deuteron. The main reason is that the long-range of the interaction decays more rapidly than the real nuclear force.

QDCSM能定性的解释核力，但是单道和道耦合的计算发现不能很好描述氟核这个束缚态的种种精细性质，主要是长程相互作用比实际核力衰减得快。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。