单词	多元说
释义	多元说医Polyphyletic theory
随便看	precast reinforced concrete support precast ribbed roof slab Precast Rod precast roof slab precast roof unit precasts precast section precast segment precastsegmental precast segmental precast-segmental precast segmental bridge column precast segmental cantilever precast segmental cantilever method precast segmental method Precast segmental method? precast-segmental sewer pre-cast segment unit precast silo pre-cast sink well precast slab precast slab floor precast slab integrity precast-slab-type construction precast solid concrete pile