The friction and wear behaviour and the positive temperature coefficient (PTC) characteristic of the composites were investigated.
采用共混法制备了以低密度聚乙烯为基体的含碳黑的导电复合材料 ,考察了导电复合材料的摩擦磨损性能及正温度系数特性 ,同时探讨了导电复合材料的摩擦熔融现象对其摩擦磨损性能的影响 。
When the sensor is forward biased at a current of 2 mA, the range of positive temperature coefficient of the sensor resistance is extended up to +300 C as a result of the minority current discontinuity and majority carrier injection.
当传感器在２ｍＡ的正向偏置电流下，由于少数载流子的不连续性以及多数载流子的注入，传感器电阻的正温度系数（ＰＴＣ）区拓宽到５７３Ｋ（＋３００℃）以上。
The Ni/(Ba,Sr)TiO3 positive temperature coefficient(PTC) composite with low resistivity was sintered in two kinds of reducing atmospheres.
在两种还原气氛中烧结制备低阻Ni/(Ba,Sr)TiO3复合正温度系数(positive temperature coefficient,PTC)材料,通过X射线光电子能谱仪研究复合材料表面镍的存在价态。
A new series of composites exhibiting a large positive temperature coefficient (PTC)of resistivity effect have been prepared by incorporating YBa_2Cu_3O_(7-x) particles into polyethylene matrix.
一类新型ＰＴＣ复合材料的制备及性能杜伟坊，杜海清（湖南大学材料科学及应用化学研究所，长沙，４１００８２）关键词正温度系数，聚乙烯，ＹＢａ_２Ｃｕ_３Ｏ_（７－ｘ）具有正温度系数（ＰＴＣ）的材料在其转化温度附近具有电阻率大幅度上升的特点，因而在温度检测与?。
The packaging materials and processes of positive temperature coefficient (PTC) devices made up of the composite of polyethylene and carbon black(PE/CB) for over current protection were studied.
用环氧和有机硅树脂涂料对由聚乙烯／炭黑（ＰＥ／ＣＢ）制备的正温度系数（ＰＴＣ）电路保护元件的表面处理及其工艺进行了研究。
Materials of low PTC can be obtained by diffusing Mn into n-type Si.
对n型硅掺锰,得到的是小正温度系数热敏材料,其B值在620 K左右;对p型硅掺锰,得到的是负温度系数热敏材料,其B值在4 200 ~4300 K之间。
In order to improve the cold start and emissions of engine,a way which utilized the positive temperature coefficient(PTC) materials to preheat diesel fuel in the injector was presented,and this new injector was designed.
为了改善发动机冷起动性能和排放,提出了一种用正温度系数(PTC)材料加热柴油喷油器内燃油的方法,并设计了相应的喷油器。
positive temperature coefficient thermistor
正温度系数热敏电阻
PTC Thermistors with Low Resistivity at Room Temperature
低室温电阻率正温度系数热敏电阻器
Study on the Positive Temperature Coefficient Effect of Polyethylene/Carbon Black Composite;
聚乙烯/炭黑复合体系正温度系数效应的研究
A new diesel injector with PTC materials
一种带正温度系数材料加热的柴油喷油器
Study of Laser Sintering of Thick-Film Positive Temperature Coefficient Thermistor Paste
激光烧结厚膜正温度系数热敏电阻浆料的研究
Generic specification for the directly heated positive step-function temperature coefficient thermistors
GB/T7153-1987直热式阶跃型正温度系数热敏电阻器总规范(可供认证用)
The change of mosquito-density was positively correlated with temperature.
蚊数量变化与其环境温度变化呈正相关关系。
EFFECT OF TEMPERATURE ON DIELECTRIC CONSTANT AND DIELECTRIC LOSS FACTOR OF INSULATING PAPER
温度对绝缘纸介电系数和损耗角正切的影响
resistance-temperature coefficient (of resistance thermometer sensor)
（热电阻的）电阻温度系数
negative temperature coefficient thermistor ceramics
负温度系数热敏电阻瓷
negative tempperature coefficient thermistor
负温度系数热敏电阻
negative temperature coefficient humidity sensitive resistor
负温度系数湿敏电阻器
temperature coefficient of regulated output current
调整输出电流温度系数
temperature coefficient of voltage regulator
电压调整器的温度系数
temperature coefficient of regulated output
调整输出电压温度系数
Application of PTC polymer on RF thermal fusion surgical devices
正电阻温度系数高分子在外科热封合器械中的应用
Aneroid readings must be adjusted for temperature and humidity.
空盒气压计读数亦须作温度改正和湿度改正。
His temperature went down to the normal degree
他的体温降到了正常的度数。