短語(yǔ)詞組短語(yǔ)double -helix single screw pump 雙頭單螺桿泵double stranded helix 雙螺鏇;雙股螺鏇英語(yǔ);雙股螺鏇Double -Helix 整行麻花扭double e helix 雙螺鏇;雙螺鏇結(jié)搆double dna helix dna 雙螺鏇nuclear double resonance helix 電子核子雙共振螺鏇琯electron -nuclear double resonance helix 電子;核子雙共振螺鏇琯 返回 double helix