勉勉强强能看懂,呵呵.
【 在 copydd (copypig) 的大作中提到: 】
: 1. The molecules of a block copolymer consist of a central block of butadiene
:  units, with end blocks of polystyrene units. The average degree of
:  polymerization is 2000for the central block and 150 for each of the end
: ...................
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FROM 166.111.34.*