单词	密电--密件
释义	密电；密件restricted message
随便看	effective flux effective f-number effective focal length effective focal spot effective for effective force effective force in rotation effective fragment effective frame effective freeboard effective freezing time effective frequency effective frequency deviation effective frequency range effective full power hour effective full power hour{=efph} effective furnace volume effective gague length effective gate overdrive effective g factor effective grain size effective grasp area effective gravity effective grounded effective grounded line