and master conformation of alkanes, isomerism, cis-trans isomerism and enantiomorphism;
烷烃象、同分异、顺反异和对映异现象;
and master conformation of alkanes, isomerism, cis-trans isomerism and enantiomorphism;
烷烃象、同分异、顺反异和对映异现象;
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