方法：用经典物理学的扩散理论探讨扩散运动引起的信号衰减与温度、时间的关系。
Methods; To study the relationship between signal attenuation and temperature or time by the theory of diffusion movements on classical physics.
目的：比较非理想均匀磁场和线性梯度磁场中扩散运动引起的信号衰减对温度、时间的依赖性。
Objective; To compare the dependence of signal attenuation on temperature and time caused by the diffusion movements in inhomogeneous and linear gradient magnetic field.
有含湿砂层存在的被动蒸发冷却层屋面的温度波衰减，在本质上不同于干燥状态情况。
The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.
实验结果表明，液氢的超声衰减的温度依赖特性主要取决于体积粘滞效应。
The results indicate that the temperature dependence of ultrasonic attenuation in liquid hydrogen is mainly determined by volume viscosity effect.
对其低温的声学和比热容性质进行了研究，得到了样品模量和声衰减以及随温度变化的规律。
The acoustical properties and specific heat of sample at low temperatures were studied, and the temperature dependences of modulus, sound attenuation and specific heat were obtained.
扩散式燃烧器燃烧温度最低，速度衰减快。
For diffusion burner, burning temperature is lowest, attenuation of velocity is quick.
提出一种新颖的温度不敏感电光振幅调制器和保偏可变光衰减器的设计方案。
A new design for temperature insensitive electro-optic modulator and variable optical attenuator is presented in this paper.
研究微波热疗组织超声衰减系数的温度相关性，以期实现肿瘤微波热疗超声无创测温。
The temperature correlation of ultrasound attenuation coefficient in the organization of microwave hyperthermia is researched in order to achieve non-invasive organization temperature.
海洋声速、声衰减、温度、盐度、悬浮物等都是海水的重要参数。
Ocean sound speed, attenuation, suspended sand size and so on are all important ocean parameters.
温度的升高将导致器件性能的变化与衰减，甚至失效。
Temperature increasing will lead to the performance of the devices change and attenuation, and even failure.
本文基于反射衰减法提出一种新的直接对B超图像进行处理得到温度的监测方法，无须增加其他附加设备。
This paper proposed a new monitoring method based on reflection attenuation, which computes temperatures directly from the B-ultrasonic images and needs no more other equipments.
由于罐车内石油温度是随时间衰减的，因此传热称之为非稳定过程。
The process of heat transfer is a non-stable process because the oil temperature in truck is decreased with the elapse of time.
规律衰减，且由于建筑热容量的影响，室内温度变化是一个比较。
Owing to the influence of thermal capacity in buildings, the attenuation of indoor temperature is very slow.
研究结果表明：时间和温度决定了水分迁移的充分性，温度的变化随深度的增加而具有衰减性，并且在冻结峰面附近形成一个冻结含水量峰值；
The results indicate that a peak of frozen moisture content is formed in frozen peak surface, which is developed for depth change with time increased.
在压力衰减测试中，温度变化对结果的影响是非常大的。
Temperature CHANGES during a pressure decay test will have MAJOR impact on test results.
研究结果表明，对于任何一种应用，降低块材的温度，都能起到抑制悬浮力衰减和减小温升的作用。
The results showed that, for any application, lowering the operating temperature of the HTSC can suppress not only the LF decay but also the temperature raise during the longitudinal movement.
本文利用荧光衰减寿命作为传感参量，在保持系统环境温度不变的条件下对荧光寿命的应变响应进行了测试。
The strain response of the fluorescence lifetime is tested at a constant temperature with the fluorescence lifetime as the sensing parameter.
结果表明：燃料温度变化相对于功率的变化缓慢且滞后，燃料温度反应性负反馈不能及时抑制功率的变化是形成系统参量产生衰减振荡的主要原因。
The results indicate that fuel temperature changing more slowly than nuclear power makes reactivity negative feedback not to restrain power changing, and then power concussive progress comes to being.
对寄生的漏源串联电阻及其温度特性进行了详细探讨，计算结果表明，漏源串联电阻给漏源电流造成的衰减在温度升高后变得很大。
The result of calculation indicated that the attenuation of source-drain current caused by the source-drain resistance increased when temperature increased.
且等离子体密度和电子温度沿轴线方向衰减很快。
And the plasma density and electron temperature fall quickly along the axial line.
该光纤耦合模块连续工作500小时没有发现明显的功率衰减，并且输出功率经温度循环和振动冲击后具有较好的稳定性。
The output power is very stable after the temperature cycling and vibration test. No apparent power decrease has been observed as the device working continuously for 500 h.
前言：目的：研究声衰减系数、声速、温度等媒质参数对声聚焦的影响。
Objective: Study the influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field.
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.
结果表明：时效温度范围内7050铝合金的应力松弛曲线表现为典型的对数衰减曲线。
The results show that in traditional aging temperature, the stress relaxation curve of 7050 aluminum alloys exhibits a classical logarithmic decrement curve.
分析发现基板材料、散热器大小不同，达到平衡状态时的温度不同，对LED灯的光通量衰减影响程度不同。
Analysis showed that under the different condition of substrate materials, sizes of radiator, the flux LED bulbs attenuate different affect extent.
通过单芯片LED的数值模拟结果表明：温度梯度越大，能量的衰减也越大，芯片附近存在应力集中。
It is enunciated by numeric simulation with single-chip LED. The more the temperature grade is, the more hugely the energy decreases. There is a stress concentration around the chip.
两种酶活力的温度变化曲线具有相似性，温度越高，它们的活力衰减得也越快；
S1398. The results also indicated that curves of two enzymes activity with temperature were similar, higher the temperature was, faster their activities decreased.
两种酶活力的温度变化曲线具有相似性，温度越高，它们的活力衰减得也越快；
S1398. The results also indicated that curves of two enzymes activity with temperature were similar, higher the temperature was, faster their activities decreased.
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