光电管

redder source

较赤热光源

red-sensitive cell 红敏光电管 | redder source 较赤热光源 | reduced admittance 约化导纳

redeposition

再沉淀;再沉积

red-sensitive phototube 红敏光电管 | redeposition 再沉淀;再沉积 | redilution 再稀释

refit

重装

reference-actual value comparison 标准值-实际值的比较 | refit 重装 | reflection light barrier 反射式光电管

refurbish

电梯大修

reflection light barrier 反射式光电管 | refurbish 电梯大修 | regenerate to supply mains 回馈到电源

safety lock

保险锁

safety light barrier 安全光电管 | safety lock 保险锁 | safety net 安全网

cell; secondary

蓄电池

试样管 cell; sample | 蓄电池 cell; secondary | 硒光电管 cell; selenic photoelectric

secondary emission coefficient

次级发射系数

secondary emission characteristic 二次放射特性 | secondary emission coefficient 次级发射系数 | secondary emission photo cell 二次发射光电管

secondary emission rate

二次放射率,次级放射率

"secondary emission photocell ","二次放射光电管" | "secondary emission rate ","二次放射率,次级放射率" | "secondary energy ","二次电能"

selenium conductive cell

硒光敏电池

"selenium cell ","硒光电池,硒整流片,硒(质)光电管" | "selenium conductive cell ","硒光敏电池" | "selenium diodes ","硒二极体"

selenium photocell

硒光池

selenium cell 硒光电管 | selenium photocell 硒光池 | selenium photovoltaic cell 硒光光生伏打电池

propanone oxime：丙酮肟

propanone hydrogensulphite丙酮合亞硫酸氫鹽 | propanone oxime丙酮肟 | propanoyl chloride丙酰氯

underweight：不合标准的重量重量不足的

underway 在航在航的 | underweight 不合标准的重量重量不足的 | underwirter's guarantee 保险人保证书