单词	博尔顿筘号
释义	博尔顿筘号Bolton reed count
随便看	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 safety fairway safety fastener safety feature safety film safety first safety-first safety flange safety flap safety-- flight safety; flight safety fork safety frame safety frequency