sieve e tube筛管细胞;筛管
sieve-tube cell筛管细胞
sieve-tube筛管分子
sieve-tube element筛管分子
sieve tube member筛管节
vessel form sieve tube导管型筛管
sandy sieve tube method砂滤管
slotted sieve tube割缝筛管
sieve tube element筛管分子
N（名词） an element of phloem tissue consisting of a longitudinal row of thin-walled elongated cells with perforations in their connecting walls through which food materials pass 筛管 [botany]