查询词典 temperature difference

Also the usage of the calculation method of heat resistances in equivalent electrical circuits, by which the difference between the temperature of the attention point inside the lighting and environment temperature can be directly obtained.

本文对灯具的热传导计算方法进行了讨论，提出对于灯具的散热计算方法使用等效电路的热阻法计算，可以直接算出灯具内温度关注点与环境温度的温差。

The difference in temperature of the surface of the sample will be produced when the sample is immitted continuous heat, for the different configuration in the sample. The damage is detected by the temperature of the surface obtained by Infrared detector. It names Infrared Thermography. It is a nondestructive, non-contact and real-time technique, and has important status in nondestructive damage evaluation.

红外热像技术是把连续热流注入试件表面，热流向试件内部扩散情况与试件内部材料情况有关，并随时间推移使试件表面产生温差，再依据被测物连续辐射红外线的物理现象，采用红外摄像电子分析仪器与计算机处理器摄取红外线辐射的强弱程度，并转换为被测范围内的温度场分布的图像，借以直观的识别与判定试件近表面的缺陷情况。

The heating oven is used as heating system, the temperature system includes thermocouple, electron potential difference instrument, temperature automatic instrument and transformer.

加热系统采用加热炉，测温系统包括热电偶、电子电位差计、温度自动控制仪、自偶变压器等。

Average maximum temperature, average daily difference in temperature adversely affected the polarization of spicules and the accumulation of dry substance during the period of procreation growth and even the whole procreate period time.

其中，在玉米生殖生长期乃至全生育期中，平均最高气温、平均日较差对玉米花穗分化及干物质的积累影响都较明显。

On the basis of analyzing the thermodynamic properties and cycle performance of pure refrigerants, the paper optimizes their concentration while screening NARMs used in wide variable-temperature heat source. The practical applications of NARMs, such as R22/R123, R123/R125 etc., are studied in geothermal heat pump, seawater heat pump, air dehumidification system and dual-evaporator domestic refrigerator. The results show that the NARMs can match the limitation of a pinch point at the air-side exit of heat exchanger, reduce the unreasonable heat transfer temperature difference, and improve the COP of system. The above conclusion is proved by measuring the cycle performance of R12, MP39 and R11/R22 in a two-evaporator experimental system.

其次，本文在工质热物性和变工况循环性能分析基础上，筛选和优化了适应外部大变温热源约束条件的非共沸混合工质及其浓度配比；讨论了相变温差较大的非共沸混合工质（如R22/R123、R123/R125等）在地热源供热热泵、海水源供热热泵、双门冰箱和热泵空气除湿的应用，计算分析表明制冷与热泵系统采用相变温差较大的非共沸混合工质有利于弱化传热过程的&窄点&的约束，减小传热过程中的不合理温差，提高系统COP值；通过建立双蒸发温度循环系统试验装置，对R12、R22/R11和R22/R152a/R124循环性能进行实验研究，结果与理论分析一致。

Through researching the weight changes and acidity of red flesh pumelo stored in normal temperature, according to the index of color difference and researching the affecting factors of the juice's color: citric acid quantity, amount of added sugar, heating temperature and time, exploring the typical pigment and its stability of red flesh pumelo's pulp by using UV-VIS spectrum and exploring the color stability of red flesh pumelo's juice during stored.

通过分析红肉文旦常温贮藏过程的重量和酸度的变化；以色差为指标研究柠檬酸用量、加糖量、加热温度及加热时间对果汁颜色的影响；采用紫外可见吸收光谱法探讨红肉文旦果肉特征色素及其稳定性；以加热贮藏探求红肉文旦果汁产品在贮藏过程的色泽稳定性。

Because of using optics sensor and working under external environment condition, the precision of the visibility meter was affected by the temperature stability of the optics sensor and the difference between the temperature inside and outside the meter.

能见度仪光学器件的温度稳定性以及光学镜头与外部的温差都将直接影响能见度仪的精度。

The result showed that, the carp otoliths of Heilongjiang Lianhuan Lake and Beijing city Miyun Reservoir has the ball aragonite and the column aragonite two kind of crystal types. The characteristics has relation to the average temperature and the difference in temperature of the water.

研究结果初步显示：黑龙江连环湖和北京密云水库两水域的鲤鱼耳石中分别具有球文石和柱文石两种晶体类型，这与水体的平均温度及昼夜温差有关。

An apparatus made by our lab is used for direct measurement of torque of yarns. The torque-twist relation curves, torque-relaxation behavior of several kinds of yarns at room temperature and heat-setting temperature are given. After analyzing the difference of different yarn torque it can be found that the special structures of composite yarns made of polyester filament and wool staple fibers mainly cause the high residual torque.

应用自行研制的直接测量纱线扭矩装置，这里测试数种纱线的扭矩-捻度关系曲线及其在常温和热状态下的扭应力松弛关系曲线，分析相同捻度下各种纱线扭矩差异的根源，发现涤长丝与毛短纤复合纱线的特殊结构是造成复合纱线残余扭矩较大的主要原因。

The temperature which the damp curtain can decrease is determined by the temperature difference between the wet-bulb and dry-bulb and the efficiency of the camp certain ,their product is the ecreased numerical value .

湿帘能降低的温度取决于空气的干湿球温度差和湿帘此时的效率，降温的数值就是两者的乘积。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。