Photo-electric cell, with special detection circuitry MEASURING CELL: Modified U-Tube type. Vacuum jacketed glass cell with TFE stopcock at the bottom for drainage.是什么意思_Photo-electric cell, with special detection circuitry MEASURING CELL: Modified U-Tube type. Vacuum jacketed glass cell with TFE stopcock at the bottom for drainage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句