Read Edit View history 防毒通道 fángdútōngdào protective passage Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 防毒通道 fángdútōngdào protective passage protective passageway 这种特殊的防毒通道可以有效隔绝有害气体。 Edit Delete References Add reference No references for this word.