防化救援 fánghuàjiùyuán chemical defense and rescue Origin Definitions Defs Strokes Stroke Words Sentences Sents 防 fáng nounverb to defend To protect or guard a location; also refers to matters or measures related to defense化 huà noun (bound form) chemistry (bound form) relating to chemistry, often an abbreviation for 化学 huàxué救援 jiùyuán nounverb to rescue to save; to support; to help or assist someone in difficulty or danger