1) decay law
衰变规律
1.
Study on the decay law of cotton fibre performance in spinning using multivariate statistical analysis;
纺纱过程中棉纤维性能衰变规律的多元统计分析
2) attenuation law of deformation ratio
应变衰减规律
3) attenuation rule
衰减规律
1.
On the basis of theoretical analysis and on-the-spot investigation,the attenuation rule of oscillation speed in Wushan Copper Mine is obtained upon repeated researches on the collected data,providing useful evidences for the clarification of explosive amount.
通过理论分析和矿山现场测试,对收集大量的测试数据运用最小二乘法回归原理进行分析,得出了武山铜矿中深孔爆破振动速度的衰减规律,为矿山今后确定一次最大一段起爆药量提供了依据和保障,也可为类似地下矿山的设计和施工提供参考。
2.
The ANN for attenuation rule of 3D seismic parameters is studied in the paper.
地震动参数的衰减规律在地震工程中有着重要的地位,随着地震动参数观测记录的积累,追求较为全面准确的衰减规律也是一个重要的基本问题。
3.
In order to establish a low strain method of quantitative analysis of pile defects considering pile-soil interaction,the attenuation rule of velocity wave along pile shaft was studied under different pile-soil interaction damping coefficients.
为了在低应变条件下建立考虑桩土相互作用的基桩缺陷定量分析方法,研究了不同桩土相互作用阻尼系数时速度波沿桩身的衰减规律。
4) attenuation
[英][ə,tenju'eiʃən] [美][ə,tɛnjʊ'eʃən]
衰减规律
1.
Based on the research of hydrogeological condition,the distribution and attenuation of COD of Sanlidian channel in unconfined aquifer are studied by numerical simulation.
在水文地质条件研究的基础上,通过数值模拟对三里店沟水COD在潜水含水层中的分布及衰减规律发现:构成COD的物质在潜水含水层中迁移缓慢,COD衰减梯度较大,为0。
2.
Based on the science of combustion,the explosion dynamics and the applied mathematics,the study of gas explosion spreading and attenuation can be made from the reaction angle between the explosion and the environment.
瓦斯爆炸的传播和衰减规律的研究是基于燃烧学、爆炸力学和应用数学等学科从爆炸所在环境出发的应用研究。
3.
The wave intensity change equations are applied with the purpose of studying the detonation attenuation.
目的在于利用瓦斯爆轰的波强度变化方程研究掘进巷道瓦斯爆轰的衰减规律。
5) attenuation law
衰减规律
1.
Analysis of attenuation law and characteristic parameters in excavation roadway during gas explosion;
掘进巷道瓦斯爆炸衰减规律及特征参数分析
2.
Influential factors analysis of blasting vibration attenuation law;
爆破震动衰减规律的影响因素
3.
Analysis on attenuation law of axial velocity during the initial stage of tunnel fire;
火灾初期隧道轴向风速衰减规律分析
6) attenuation pattern
衰减规律
1.
Based on the observed data of strong motion acceleration in California and other states of USA,the attenuation pattern of peak horizontal and vertical acceleration and square root of short time mean squares is studied by regressive analyzing method.
根据美国加州等地的强震记录,采用回归分析方法研究了加速度记录水平、竖向分量的峰值加速度(PGA)和一定时间窗内加速度均方根(SRSTM S)的衰减规律。
补充资料：衰变规律
| 衰变规律 decay law 放射性衰变遵从的指数衰变规律。放射性核是一个量子体系，核衰变是一个量子跃迁过程，遵从量子力学的统计规律，也就是说，对于任何一个放射性核，发生衰变的时刻完全是偶然的，不能预料，而大量放射性核的集合作为一个整体，衰变规律是十分确定的。设t＝0时刻的放射性核数为N0，t时刻放射性核数为N，则指数衰变规律为N＝N0e-λt，式中λ称为衰变常数，表示单位时间内放射性核的衰变概率，它反映了放射性核衰变的快慢。λ值越大，衰变越快；反之则相反。实际中常用半衰期T1／2或平均寿命τ来反映衰变的快慢。半衰期是放射性核衰变掉一半所需的时间；平均寿命是指不同核衰变有早有晚，完全是偶然事件，对于全部核的寿命取平均得平均寿命。根据指数衰变规律有 
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