Wiring Estimate and Electric Quantity Compensate for High Voltage Electric Energy Meter ; VHF vacuum-tube voltmeter

高压 有功电能表的接线判断及电量追 退 甚高频 电子 管电压表

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 .

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 R2 of the double-glazed collector is the best and the collector area of the CPC vacuum-tube collector needed by solar refrigeration system is the least .

CPC 聚焦型太阳能集热器热性能最优，在 相同制冷量下，所需集热面积最小， 可 节省 安装 空间。

Heat-pipe vacuum-tube solar energy & direct heating heat-pump hot water system design research and economic analysis

分离 电极 式 光电 倍增管热管式 真空 管太阳能&直热式热泵热水系统设计研究与经济分析

This paper is a major component of the vacuum toilet system : vacuum-tube network vacuum terminals . Vacuum station design and construction such as the work on standardization In practical projects aimed at increasing the use of vacuum toilet system reliability and economic .

论文主要是针对真空厕所系统的主要组成部分： 真空管网、真空终端、真空站进行设计与工程施工等方面的标准化工作，旨在提高真空厕所系统在实际工程运用中可靠性和经济性。

To achieve the same amount of refrigeration CPC vacuum-tube collector with optimum thermal performance requires the smallest collector area only 58.6 % of the area the double-glazed collector requiring and therefore reduces installation space significantly .

热性能最优的 CPC 集 热器在相同制冷量 下， 所需集热面积最小，为双层盖板集热器的58.6%，减少了安装空间。

More and more solid state transmitters have replaced vacuum-tube transmitters because they have the advantages of high reliability long lifetime low operating voltage graceful degrading and so on .

由于 固态发射机所具有的高可靠性、长寿命、低工作电压、 故障 软化等优点，越来越多的固态发射机去替代 真空 管发射机。

Outfitting the apartment building with a solar thermal system of ten vacuum-tube collectors for the central domestic water supply is an additional energy efficiency measure .

舾装公寓大楼和一个太阳能热系统的 真空 管 集 热器十中央家庭供水是一个额外的能量效率的措施。