单词	连组
释义	同连组--单元连接
随便看	safety element safety encolsed switch safety engineering safety equipment safety equipment certificate safety equipment certificate--safety equipment certificate safety equipment certificate; safety equipment certificate safety evaluation safety evaluation report safety evaluation report{=ser} safety explosive safety explossives safety extra low voltage safety extra-low voltage safety extra-low voltage equivalent controlgear safety extra-low voltage (selv) ? equivalent controlgear safety facility safety factor safety--factor safety factor against overturning safety factor against sliding safety factor, factor of safety safety factor for drop-out safety factor for holding safety factor of strength