英语词汇“人防”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	人防
释义	人防 rén fáng 基本例句 people's air defense; civil air defense 人防工事air defence works 人防工程civil air-defence construction
随便看	involute helicoidal surface involute helicoids double-enveloping involute helicoid worm Involute helix gear involute inspect instrument involute interference point Involute interpolation Involute Interpolation of Time-Sharing Method involute lamination involute leaves involute line involutes extend involutes gear involute shells involute spherical gear involute spikemoss herb involute spiral angle involute spiraloid involute spline involute spline broach involutely involute master involute matrix involute milling cutter involute milling cutter for straight bevel gear