tetracyclic coordinates [计] [数] 四圆坐标
tetracyclic triterpenoids 四环三萜
tetracyclic antidepressant 四环抗抑郁药 ; 四环类抗抑郁药
diethenoid tetracyclic triterpene alcohol 二烯系四环三萜烯醇
tetracyclic terpane 四环萜烷
tetracyclic compound 四环化合物
Tetracyclic diterpenoids 四环二萜烷
ADJ (of a compound) containing four rings in its molecular structure (化合物)四环的 [chem]
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