sterically hindered 位阻的;空间位阻的...hindered rotation 位阻旋转;受阻旋转;被阻旋转...hindered phenol 受阻酚...hindered contraction 限缩变形...hindered sedimentation 受阻沉降...hindered phenolic antioxidant 受阻酚性抗氧剂...sterically hindered phenol 位阻酚;空间位阻酚...
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