Read Edit View history 防毒通道 fángdútōngdào gas-proof passage Origin Definitions Defs Strokes Stroke Words Sentences Sents 防毒通道 fángdútōngdào gas-proof passage a passageway or airlock designed to protect against gas, toxins, or contamination
防毒通道 fángdútōngdào gas-proof passage a passageway or airlock designed to protect against gas, toxins, or contamination