On the basis of the noise linearity of low noise amplifier(LNA), the variable load temperature method is introduced to measure noise properties of cryogenic LNAs.
在低噪声放大器噪声线性的基础上,介绍了负载温度可变法,用于测量低温低噪声放大器的噪声。
A lowest no-load temperature of 13.8 K has been obtained for the first stage without thermal connector, which is a new record for the single-stage pulse tube cooler.
在没有热桥连接的情况下,单独测试第一级最低制冷温度达到13.8K,这是单级脉管制冷机获得的最低制冷温度新纪录。
Let's see how Load would be used to call the weather temperature service discussed previously.
我们看看如何使用Load来调用前面讨论的天气温度服务。
Primary effects include gravity and wind - but at a secondary level, you have to think about temperature and moisture changes, the materials slightly deforming under load.
初始效应包括重力和风——但在二次效应层面上,你就得考虑气温和水分变化,材料因负重导致的轻微变形。
When using the washing machine, be sure there's a full load and turn the temperature down if it's not really grubby.
使用洗衣机时,确认满载,如果衣服不是很脏就把温度调低。
This paper emphatically describes how to lift its fume exhaust temperature under low load running of a boiler so as to reduce low temperature corrosion.
重点论述了在锅炉低负荷运行状态下提高排烟温度的方法,以达到减少低温腐蚀的目的。
The mean relative deviations of the predicted heat load, heat efficiency and temperature are less than 10%.
预测的热负荷、热效率及温度的平均相对误差均小于10%。
The cylinders must fire in the proper order and at a precise instant, depending on engine speed, load and temperature conditions.
各缸的点火应该有合适的顺序和精确的时间,这取决于发动机的转速、负荷和温度。
In the computation of stress field, the factors, such as temperature load, deadweight of concrete, water potential, creep stress and self expansion of concrete, are involved in the program.
计算中考虑了温度荷载、自重、静水压力、混凝土徐变和自生体积变形等情况。
Emphasizes the variation of peak load regulating with ambient temperature, the design of terminal heat radiators, and the design operating parameters of geothermal heat exchangers in indirect systems.
重点分析了间接式地热供热系统调峰负荷随环境温度的变化,以及所受末端散热器设计、地热水与循环水换热器设计运行参数的影响。
The STK7300 provides excellent regulation over variations in line , load and temperature.
STK7300提供优秀的规管在一致的变化,负载和温度。
Furthermore, 17 step temperature load spectrum was compiled for the pipeline.
进而编制出这管线低-高-低17级温度载荷谱。
The influence of load level, temperature, time and other factors on the creep behavior have also been analysed.
本文还对时间,载荷水平、温度和其它因素对蠕变的影响也做了进一步的研究。
The test must work in a specify rotation spectrum, temperature spectrum and load spectrum to analogize the reality condition.
实验器要在一定的载荷谱、温度谱、转速谱条件下工作,模拟轴承的实际工况。
The analysis indicates: the load amenity index ratio curve is very stable in all axis range, this indicates amenity index can better reflect the change of power load relative to temperature.
分析表明:负荷-舒适度指数比值曲线在整个坐标轴范围内比值很稳定,说明舒适度指数相对于温度能更好地反映电力负荷的变化。
As it is the real reflection of relation between the temperature and load, the precision of load calculation is enhanced.
由于它反映了温度与该部分冷负荷的真实关系,使负荷和能耗计算精度提高。
The temperature at which a thermoplastic can be operated under load can be defined qualitatively by the heat deflection temperature.
热塑性塑料带载运行温度可从质量上定义为热偏差温度。
The parameters such as POS concentration, POS heating temperature, fuel load and oxygen content have high influence on combustion efficiency.
石油焦渣油浆的浓度、油焦浆的加热温度、负荷和氧量对其燃烧效率有很大影响。
Based on these formulas, computations of the temperature load in arch DAMS are discussed in the second part.
第二篇就在这些公式的基础上讨论了拱坝温度荷载的计算。
In the view of the concrete's minute construction, cement and mortar encircled bone, there is tiny crack on interface of bone and mortar under temperature load.
从混凝土组成的细观角度出发,研究水泥砂浆包围的骨料,在温度荷载作用下首先在骨料与砂浆的界面上产生界面微裂缝。
The stress and deformation of the concrete box girder under the temperature load is one of the main factors affecting engineered quality.
温度荷载作用下的混凝土箱梁的应力和变形,是影响工程质量的主要因素之一。
Paper researches and analyses the stability performances of curved girder bridge under vertical load and temperature load.
论文将就竖向荷载与温度荷载作用下,该类曲线梁桥的稳定性能进行研究分析。
Virtual temperature load method to adjusting the tension force in the cable is proposed, and its computing procedure and iteration expression are given.
提出了斜拉桥调索计算的斜拉索虚拟温度荷载法,给出了该方法的计算流程和迭代表达式。
The influences of die radius, load and temperature on the flow properties of FEP melt were investigated by using a melt flow indexer.
应用熔体流动速率仪考察了口模半径、载荷及温度对聚全氟乙丙烯(FEP)流动性能的影响。
Impact rupture suface of the composites was observed by scanning electron microscope, and the load deformation temperature and mechanical properties were tested.
通过扫描电镜观测了复合材料冲击断面的形貌,测试了复合材料的负荷变形温度和力学性能。
Firstly, the paper studies the characters and sorts of load and analyses the influence factors of load, for example, the region component of load, temperature, rainfall and holiday and so on.
本文首先对负荷的特性与分类进行了研究,并在此基础上分析了诸如负荷地区组成、温度、降雨量与节假日等对负荷的影响特征及关系。
Gear box test has a long testing period and require it go on under certain temperature, load.
变速器总成台架试验周期长,并且要求其在一定温度、载荷下进行。
Besides, the load caused by temperature field most affects the cylinder block.
温度场产生的载荷对气缸体影响最大。
This article mainly analyses the factors that affect the precise indexer life, touching surface pressure, basic motion load and temperature factor for example.
着重分析影响精密分度装置寿命的接触表面压力,基本动载荷,温度系数等因素。
On the base of actual bridge observation and test research, this paper discusses the temperature stress effect to concrete box girders which caused by temperature load.
在实桥观测与试验研究的基础上,对温度荷载所产生的温度应力对混凝土箱梁的作用进行了探讨。
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