短語(yǔ)詞組短語(yǔ)high hazardous risk area 高風(fēng)險(xiǎn)區(qū)hazardous s area 危險(xiǎn)區(qū)hazardous geological area 災(zāi)害地質(zhì)區(qū)hazardous area plan 危險(xiǎn)區(qū)平麪圖classification of hazardous area 危險(xiǎn)區(qū)劃分Electrical Hazardous area classification 電氣危險(xiǎn)區(qū)域分析hazardous area classification 危險(xiǎn)區(qū)劃分;危險(xiǎn)區(qū)Hazardous area SPL measurement 危險(xiǎn)區(qū)域聲壓測(cè)量 返回 hazardous area