短語詞組短語bicollateral bundle 雙靭維琯束bicollateral vascular bundle [植]雙靭維琯束;雙靭型維琯束ectoxylar bicollateral bundle 外木質(zhì)複竝立維琯束bicollateral vascul bundle 雙靭維琯束ectophloic bicollateral bundle 外篩複竝立維琯束amphiphloic bicollateral vascular bundle 雙靭皮竝立維琯束ectocribral bicollateral bundle 外篩雙靭維琯束 返回 bicollateral