1.
extragalactic compact radio source
河外致密射电源，类星体
2.
AN OPINION ABOUT APPARENT MAGNITUDE-REDSHIFT RELATION OF QSS WITH COMPACT RADIO SOURCE
有致密射电源的类星体红移-视星等关系的一点讨论意见
3.
Area Source Filament Thermion Emission Flow Density And Uniformity Analysis
面源灯丝的热电子发射电流密度和均匀性分析
4.
Calculate the Surface Field Strength and Emission Current Density of Field Emitter Cathode with Coefficient Method
待定系数法计算场致发射体阴极表面场强和发射电流密度
5.
Study on Measurement of Radio Emission from Interplanetary High Density Plasma Clouds Induced by ICMEs;
ICMEs导致的行星际高密度等离子体云射电辐射测量方法
6.
density meter(of ionizing radiation)
（电离辐射）密度计
7.
Sealed radioactive sources classification
GB4075-1983密封放射源分级
8.
Sealed radioactive sources General requirement??
密封放射源的一般要求
9.
sealed source [radioactive substance]
密封源〔放射性物质〕
10.
Sealed Radiation Sources registry
密封辐射源登记系统
11.
The density logger consists of a radiation source.
密度测井仪包括辐射源。
12.
Basic ionizing radiation symbol
致电离辐射的基本符号
13.
field emission electron microscope
场致发射电子显微镜
14.
measures amount of ionizing radiation.
测量致电离辐射的数量。
15.
Density meters utilizing ionizing radiation
GB/T13980-1992电离辐射密度计
16.
ionizing radiation transmission density meter
电离辐射透过式密度计
17.
Radiation protection - Sealed radioactive sources Leakage test methods???
辐射防护－－密封放射源泄漏检验方法
18.
extragalactic double radio sources and multiple radio sources
河外射电双源和多重源