vacuum tube造句
例句与造句
- First - generation computers were characterized by the use of vacuum tubes as their principal electronic component
第一代计算机的特色是使用真空管为其主要电子器件。 - Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuum tubes
电真空器件及电光源用钨钼材料电阻率的测试方法 - Transistors replaced the old vacuum tubes , and by the 1960s communications satellites eliminated the necessity of landlines
到了60年代，通信卫星又消除了对地面线路的需要。 - The first electronic computers used vacuum tubes and other components , and this made equipment very large and bulky
第一批电子计算机使用真空管和其他元件，这是设备变得十分庞大。 - X - ray emission from vacuum tubes of television and video display units are also sources of artificial radiation
其他人工辐射来源包括电视机及视象显示器等，它们的真空管会发放x射线。 - It's difficult to find vacuum tube in a sentence. 用vacuum tube造句挺难的
- X - ray emission from vacuum tubes of television and video display units are also sources of artificial radiation
其他人工辐射来源包括电视机及视象显示器等，它们的真空管会发放x射线。 - Method for measuring the density of the fine wire and ribbon of tungsten and molybdenum used in electric light sources and vacuum tubes
电真空器件及电光源用细钨丝钼丝和薄带密度的测试方法 - Old equipment had not only such large components as vacuum tubes , but also the wires which joined the parts together
旧式设备不但有像电子管这样的大元件，而且还有把这些元件连在一起的导线。 - The principal functions that may be performed by vacuum tubes are rectification , amplification , oscillation , modulation , and detection
真空管的五大主要功能是：整流、放大、振荡、调制和检波。 - It has good character in roll and high temperature . second crystal temperature 1850 , mainly used in white filament wire , vacuum tube heating wire
W3102 ：绕丝及高温性能优良，再结温度1850 ，用于制造白炽灯丝，电子管折热丝等 - Vacuum tubes are bulky and produce a lot of heat , so first - generation computers were large and required extensive air conditioning to keep them cool
真空管体积大且发热严重,因此第一代计算机体积庞大，并且需要大量的空调设备保持冷却。 - Vacuum tubes were crucial to the development of radio , television , and sound recording , and an essential component in early telephone equipment and computers
真空管对广播、电视和录音的发展起着至关紧要的作用，它也是早期的电话设备和电脑的重要组成部分。 - Cpus used to be made of vacuum tubes , magnetic cores , and transistors , which were all relatively expensive , slow , and unreliable by today ' s standards
Cpu以前是用真空管、磁芯和晶体管做的，以今天的标准来看，这些东西相对价格昂贵，运行速度慢，稳定性也不好。 - Information - processing technology has thus far relied on purely charge - based devices ? ranging from the now quaint vacuum tube to today ' s million - transistor microchips
目前资讯工业所使用的元件纯粹是电荷型的，从古老的真空管到今天含有数百万颗电晶体的微晶片都是。 - This tube is between metal vacuum tube and all - glass vacuum tube . it can be used in cold area and its price is much low than the metal vacuum tube
介于全玻璃真空管和封装式热管太阳集热器中间的一种太阳集热器,弥补了全玻璃真空管的缺点,借鉴了封装式热管太阳集热器的优点
