通过数值计算对喷气涡流纺喷嘴内部流场衰减规律进行探讨。
The attenuated law of flow field inside the nozzle block of the air jet vortex spinning is investigated by the method of numerical computation.
通过腔镜向腔内注入压缩真空态光场，使腔模向压缩真空态光场衰减。
The cavity mode couples to an injected squeezed vacuum, and the atom is also driven by an extrnal laser field.
结果表明，建议的方法能反映近场强震地震动饱和的效应和大震远场衰减的特点。
The results indicate that the presented method could illuminate the saturation effect in near field and attenuating characteristics of strong ground motion in far field from large earthquake.
单模腔场的压缩性质受到外加驱动场的拉比频率，腔模频率与外加相干场频率的失谐量以及腔场衰减速率的影响。
The squeezing of the single mode cavity field is influenced by the driving field Rabi frequency, the cavity-mode frequency detuning from that of a coherent external field and the cavity decay rate.
超过此密度后，微波场在表面快速衰减，气体电离主要在表面进行。
Above this density, microwave field will damp rapidly, so the gas ionization is mainly on the surface.
目的评价液体衰减反转恢复(FLAIR)序列在低场MR中对脑梗塞的应用价值。
Objective: to evaluate the application of fluid-attenuated inversion-recovery (FLAIR) sequence to cerebral infarction in low field MR.
蒙特卡罗模拟提供了一种定性研究MRI和NMR中非均匀场梯度扩散衰减的方法。
Monte Carlo simulation provides an alternate way to quantify the effects of inhomogeneous field gradients used in MRI and NMR.
同时，研究了在加速器停机后真空室内部的剩余辐射剂量场分布及其随时间的衰减规律。
At the same time, the residual radiation field distribution in the vacuum tank and its decay with time were estimated after the machine is shut down.
结果表明，层中波场由一系列柱面波组成，其衰减特性与围岩中的规律不同。
The results indicated that the field in the stratum is composed of a series of cylinder wave which has the attenuation different from the country rock.
定量分析对井回灌过程中回灌井周围渗流场变化，渗透系数呈指数衰减。
The permeability coefficient of the seepage field changes in the exponent attenuation.
目的：评估低场MR液体衰减反转恢复（FLAIR）序列诊断颅内柔脑膜转移瘤的价值。
Purpose: To evaluate the value of FLAIR(Fluid attenuated inversion recovery) sequence in diagnosing intracranial leptomeningeal metastasis on low field MRI.
数值模拟了吸收和色散曲线随微波场拉比频率和失谐量的变化规律以及敏锐吸收峰的性质随激发态粒子衰减率的依赖关系。
Numerical simulation of the absorption and dispersion curves changed with the microwave Rabi frequency and detuning, and the absorption peak influenced with the decay rate of the excited particles.
叙述光纤折射率与组成、温度、波长、模场直径和拉丝张力 （拉丝温度 ）以及衰减等因素的相互依赖关系。
The dependence of the refractive index of optical fiberes on composition, temperature, warelength, M F D and drawing tension (or drawing temperature) as well as attenuation is described.
强探测场与弱跃迁进行共振耦合产生两个修饰态，修饰态间距远大于原子衰减速率。
The strong probe field is coupled to the strong transition and creates two dressed states, the level spacing of which is far larger than the atomic decay rates.
目的研究在低场液体衰减反转恢复(FLAIR)像上垂体柄的信号特征。
Objective To study signal characteristics of the pituitary stalk on low field fluid-attenuated inversion-recovery (FLAIR) images.
通过对不同应用的光纤波导结构的制造、性能测试和分析，指出了波导结构设计与光纤衰减、模场直径、弯曲损耗和波导色散等的关系。
Based on manufacture, performance test and analysis of different optical fiber waveguides, the relationships between waveguide and loss, MFD, bend loss, waveguide dispersion are deduced respectively.
利用散射波的波动特性，在叠后通过波场延拓使其聚焦成像，然后通过压制强噪声的手段将其衰减，是我们对这种噪声研究的一种新的探索。
Making a new approach to study this noise by us is using wave character of scattered wave, by post stack wave field continuation to make imaged, and then make it attenuated by means.
在低场范围中，电流随时间的变化，可以是模拟的幂指数的衰减，并与所施加的电场的增加的衰减系数拟下降。
In low field range, the change of current with time can be simulated by attenuation of power index, and the attenuation coefficient intends to decline with the increase of the applied electric field.
余洛的研究小组认为，假如此区块是一种与主要地核运动相抗衡的“漩涡”区，那么此区块的增长便可以解释现今磁偶极场的衰减现象了。
Hulot's team argues that the growth of these reversed patches, presumably eddies that are working against the primary motion of the core, can explain the current decline in the dipole field.
偶相干态光场中原子布居数反转的衰减速度较慢；
The value of atomic population inversion in a Yurke-Stoler coherent state is between them.
目的评价低场液体衰减反转恢复技术(FLA IR)和弥散成像(DWI)序列在脑部MRI应用价值。方法应用0。
Objective To explore fluid attenuated inversion recovery (FLAIR) and Diffussion-Weighted Imaging (DWI) sequence in MRI in brain.
目的评价低场液体衰减反转恢复技术(FLA IR)和弥散成像(DWI)序列在脑部MRI应用价值。方法应用0。
Objective To explore fluid attenuated inversion recovery (FLAIR) and Diffussion-Weighted Imaging (DWI) sequence in MRI in brain.
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