Its chromatographic characteristics including column efficiency, operating temperature range, thermal stability, polarity and selectivity were studied, and its separation mechanism was discussed. 用其涂渍的弹性石英管柱柱效较高,使用温度范围较宽,热稳定性和选择性较好。研究了固定液对样品的分离机理。
It has been widely equipped in concrete mixing equipments with wide operating temperature range, anti-interference ability, functional and easy to operate, intuitive display etc. 已广泛应用于混凝土搅拌设备,具备工作温度范围宽、抗干扰能力强、功能齐全、操作简便、显示直观等特点。
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey. 如果阀体的材料是可以焊接的,但膨胀系数差异很大,或者工作温度的变化幅度范围较大,螺纹连接部必须进行蜜封焊。
At this temperature it turns positive and remains so throughout its normal operating temperature range. 在这个温度下,阻值变为正值并且保持一个正常的温控范围。
The AD9200 uses a multistage differential pipeline architecture at20 MSPS data rates and guarantees no missing codes over the full operating temperature range. 它采用多级差分流水线架构,数据速率达20MSPS,在整个工作温度范围内保证无失码。
Precision voltage references are available with varying degrees of precision and initial accuracy over some operating temperature range. (使用)密电压基准会涉及精度变化和特定范围的整个工作温度范围内的初始精度。
Low-alloy Steel for the Operating Temperature Range of 600 to 620 ℃ and Its Welding Procedure 工作温度为600~620℃的低合金热强钢及其焊接技术
Operating conditions were adjusted and optimized, such as maintaining equilibrium catalyst with lower activity, increasing catalyst to oil ratio, lowering the riser outlet temperature for reducing the cracking severity, increasing recycle ratio and widening the LCO boiling range. 通过半年多的操作条件优化和调整,使用低活性平衡催化剂,提高剂油比,降低提升管出口温度,增大回炼比,降低了反应深度;
Lithium/ thionyl chloride ( Li/ SOCl_2) battery had advantages such as high energy density, high operating voltage, long storage life, wide operating temperature range and low cost of raw materials. 锂/亚硫酰氯(Li/SOCl2)电池具有比能量高、工作电压高、贮存寿命长、工作温度范围宽、成本低等优点。
Nickel-Metal Hydride ( NiMH) batteries are the promising power batteries for EV and HEV due to their high specific energy, high power, long life and wide operating temperature range. NiMH电池因具有高比能量、高功率、长寿命及宽使用温度范围等优点,成为电动汽车和混合电动汽车上很有希望的动力电源。
A satellite S band solid state power amplifier with high reliability, high efficiency, small size and low weight is fabricated. A temperature compensated circuit is designed to keep the amplifier operating at high linearly with gain almost invariable over full temperature range. 星用固放在高可靠性、高效率、小体积、低重量的基础上,采用温补电路,使部件在全温范围内,功率增益基本保持不变,并维持良好的线性工作状态;
The best operating temperature range is 180 ℃~ 220 ℃ in alcohol. 最佳工作温度区间在180℃~220℃。
Supercapacitors had higher power density compared with rechargeable battery and larger capacity, higher energy, broad operating temperature range and long cycle life compared with conventional capacitors. 与蓄电池相比,超级电容器具有较高的比功率;与传统电容器相比,超级电容器具有较大的容量和较高的能量,且工作温度范围宽、循环寿命长。
To improve the performance of fuel cells, the operating temperature of Direct Methanol Fuel Cell ( DMFC) stack should be controlled within a specified range. 为了提高燃料电池的发电性能,直接甲醇燃料电池(DMFC)堆的运行温度应该控制在一个合适的范围内。
The proposed diodes give stable performance throughout its operating temperature range and maintain negligible forward voltage drop with respect to temperature. 被提及的二极管在整个工作温度范围内性能稳定,并且对于温度的变化正向电压降的变化可以忽略不计。
The article analyzes the temperature drift equation of differential amplifier, gives its maximum of voltage and correspondent temperature in its operating temperature range. 本文完整地分析了差分放大器的温度漂移方程,给出了差分放大器在使用区间内发生最大电压漂移的量值及对应的温度。
This power supply has been used in electrostatically suspended inertial instruments, which behaves low power consumption, small size, and wide operating temperature range. 研制的钛泵高压电源已应用于静电支承惯性仪表中,具有功耗低、体积小、工作温度范围宽等特点。
In this paper we describe the structure, operating principle, design and fabrication of the new high frequency BSIT device with large temperature range. 描述了宽温超高频pnp双极静电感应晶体管的结构、工作原理、设计与制造。
The magneto-thermal characteristics of HTS cable under fault current and cooled system fault is analysed and the safe operating temperature range of superconducting cable is proposed. 分析了高温超导电缆在故障电流冲击和低温系统故障运行条件下的稳定特性,提出超导电缆安全运行温度区间。
With advantages such as ultra-thin, solid-state, active luminous, high brightness, high contrast, almost no perspective restrictions and widely operating temperature range, OLED has great application prospect. 由于OLED具有超薄、全固态、主动发光、高亮度、高对比度、几乎无视角限制和工作温度范围宽等诸多优点,而具有很大的应用前景。
But there are some special performance requirements in the military application of LCD, for example, the operating ambient temperature range, the contrast controlling, the night-vision compatible and sunlight readable. 但是,军用LCD在性能方面有一些特殊的要求,例如工作温度范围、对比度、夜视兼容和抗阳光等。
One is the piecewise linear compensation method. The whole operating temperature range is divided into some sub-ranges. In each sub-range the reference can be compensated by different linear functions to get optimum results. 提出两种曲率校正方法保证温度变化时基准电压的稳定:一是分段线性曲率校正,将整个温度区间分为若干个子区间,采用不同的线性函数分别补偿达到最优。
Supercapacitors have high power density, long cycle life, wide operating temperature range, suitable for high-current rapid charging and discharging, environment-friendly, no memory effect etc., which is the traditional secondary battery irreplaceable advantages. 超级电容具有高功率密度、超长循环寿命、工作温度范围宽、适宜大电流快速充放电、环境友好、无记忆效应等传统二次电池无可替代的优点。
We can get a terahertz radiation sources with low oscillation threshold, operating at room temperature, wide tunable range, miniaturization, based on optical parametric oscillation method. 而基于光学参量振荡的方法可以获得低阈值、室温运转、宽调谐、小型化的太赫兹源。
Constrained by the physical and chemical properties of water, there are many drawbacks, such as volatility, poor thermal stability, and narrow operating temperature range. 由于受水自身物理化学性质的制约,使用水作为电润湿材料会带来易挥发、热稳定性差、工作温度范围窄等问题。