真空管

据中国的学者和学术研究人员表示，中国现在有能力建设世界上第一条水下真空管列车--这种未来的交通方式，其速度可以超过音速、且能大幅度降低噪音。

China is now capable of building the world 's first underwater vacuum tube train , a futuristic form of transportation that can achieve supersonic speed and reduce airborne noise , according to Chinese academics and scholars .

GaN基发光管在节约能源方面有着巨大的应用前景，而使用GaN基半导体光子探测器代替真空管进行紫外探测，也有其重大的应用背景。

GaN-based light emitting devices have a great prospect in saving energy . GaN-based semiconductor photodetectors will take the place of vacuum tube devices in ultraviolet detection area .

在半导体收音机中晶体管代替了真空管。

In semiconductor receivers transistors take the place of vacuum tubes .

具有V型镜反射器的全玻璃黑铬真空管集热器的研制

Development of all-glass evacuated tubular collectors with black chromium selective coatings and V-shaped specular reflectors

CPC热管式真空管集热器开发及其传热分析

Design and heat transfer analysis of CPC heat pipe evacuated tubular collectors

基于BP神经网络建立了热管式真空管集热器热性能的预测校正模型。

A predictive correction model for thermal characteristics of heat-pipe evacuated tubular solar collector was established based on BP neural network .

三种真空管中CK-MB浓度的检测结果比较

Comparison of CK-MB examination among three vacuum tubes

当时IBM生产晶体管（而非基于开关或真空管的）电脑已有数年时间，并发明了可随机访问的磁盘存储器。

The company had been producing transistor-based ( rather than switch - or vacuum-tube based ) computers for a few years , and had already invented disc-based random-access memory .

叙述真空管集热器用的太阳能高温选择性吸收膜氮氧化铝（AlNxOy）的制备及性能。

This paper describes the preparation and properties of AIN_xO_y solar energy selectively absorbing films for vacuum collecting tubes .

凝血试验真空管死腔所致APTT、PF4偏差探讨

Analysis for errors caused by dead space of coagulation vacuum tubes in APTT and PF4 tests

基于太阳能集热器的发展现状，综合利用非跟踪聚焦型聚光器CPC和热管式真空管集热器的优越性，开发了一种CPC热管式真空管太阳能集热器。

Considering the advantages of CPC ( compound parabolic concentrator ) and heat pipe evacuated tubular collector , a kind of solar collector which employed both two components is presented .

计算了平板集热器、真空管集热器、热管真空管集热器和CPC真空管集热器的太阳能利用系数，分析了几种太阳能集热器在空调系统中的适用性。

Calculates the solar energy ratios of flat plate , evacuated glass tubular , heat pipe evacuated tubular and CPC evacuated tubular solar collectors . Analyses the applicability of these collectors to air conditioning systems .

KUVAG固封的真空管包封的结合性较差，缓冲能力也差一些。

The combination of vacuum tube encapsulation KUVAG fixation poor , poorer buffer capacity .

方法随机取受试者60例，均一次性肘静脉穿刺取血6mL，分别装于肝素锂真空管（肝素管）和普通干燥真空管（干管）各3mL，常规测定各自的心肌酶谱。

Methods The bloods samples obtained by venipuncture from 60 subjects were collected in paralled dry vaccum tubes with one of them containing heparin lithium , for assay of myocardial enzymogram .

它将会由真空管组成，按照脑神经细胞的方式运转，电子数字积分计算机（ENIAC）就是这样的机器，它使用了18，000个真空管……

It would be done by radio valves , activating each other in the way that brain cells do ; one such machine was the electronic numeral ( sic ) integrator and computer ( ENIAC ) , employing 18000 valves ...

真空管温度高、体积庞大、脆弱且寿命短暂。

Vacuum tubes were hot , bulky , fragile and short-lived .

晶体管在许多用途上已取代了真空管。

Shockley , it displaced the vacuum tube in many applications .

把光转换成电能的一种真空管。

A specific vacuum tube which converts light into electrical energy .

低压真空管全波整流器双增压器增压系统中压力波动的分析

Analyses of Fluctuation of Pressure on High-pressure System of Two Intensifiers

太阳能真空管在太阳能热气流发电中的应用

Application of All-glass Evacuated Solar Collector Tube in Solar Chimney Plant

脉冲放电法测量密封真空管真空度

Measurement of Vacuum Degree in Sealed Vacuum Tube Using Pulse Discharge

一种真空管集热器的入射角修正系数获取方法

A method to obtain incidence angle modifier of evacuated tube collector

真空管集热器配复合抛物面的研究

Design and Experimental Study of Compound Parabolic Concentrator with Evacuated Collector

能够把真空管的细丝加热的电池。

Battery used to heat the filaments of a vacuum tube .

具有内插管的真空管太阳能热水器性能研究

Performance Research on Evacuated Tube Solar Water Heater with Inner Tubes

真空管太阳能热水器冬季热性能研究

Thermal Performance of Vacuum Tube Solar Water Heater in Winter

带排挤管的真空管太阳能热水器实验研究

The experimental research of the vacuum tube water heater with supplant tube

由于尺寸小，重量轻，晶体管优于真空管。

Being small and light makes transistors more advantageous to vacuum tubes .

现场组装真空管式太阳能热水系统施工技术

Construction Technology of Evacuated Tubular Solar Water Heating System with On-site Assembly

能够增强电子流量的真空管。

A vacuum tube that amplifies a flow of electrons .