spiro[4.5]decane 螺[4.5]癸烷...spiro-index 呼吸指数...spiro ring system 螺环系...spiro[4.4]nonane 螺[4.4]壬烷...spiro hydrocarbon 螺环烃...spiro- 螺旋;呼吸...spiro atom 螺原子...
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