集体防护 jítǐfánghù collective protection Definitions Defs Origin Strokes Stroke Words Sentences Sents 集体防护 集體防護 jítǐfánghù collective protection measures or equipment used for the collective protection of a group, especially against chemical, biological, or nuclear threats
集体防护 集體防護 jítǐfánghù collective protection measures or equipment used for the collective protection of a group, especially against chemical, biological, or nuclear threats
