... geometric (or cis-trans) isomer 几何异构体(顺式-反式) grooved cork 具孔塞 ground glass cone-and-socket joint 磨口玻璃锥管接合处 ...
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... geometric c (or cis-trans) isomer 几何异构体（顺式-反式） grooved d cork 具孔塞 ground d glass cone-and-socket joint 磨口玻璃锥管接合处 ...
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