单词	歷史性
释义	歷史性 adj., historic.
随便看	mean temperature difference，mtd mean temperature differentiation mean temperature differentiation{=mtd} mean term mean term of proportion mean terrain clearance meantes mean thermal conductivity mean threshold of objection to echo mean tidal range mean tide level mean time mean time, meantime mean time before failure mean time between calls mean time between calls，mtbc mean time between detection mean time between detection，mtbd mean time between errors mean time between errors--mtbe mean time between errors，mtbe mean time between failure mean-time-between failure mean time between failure (mtbf)