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筛管 [shāi guǎn]
[植] sieve tube
- 伴胞为与筛管分子等长的一列或单个细胞。
Companion cells arrange in a row or single cell as long as the sieve tube member. - 针对石油割缝筛管的现状，开发出了一种新型复合缝腔割缝筛管。
Aimed at the current status of petroleum slotted sieve tube, a kind of new typed slotted sieve tube with compound slot was developed. - 除蒙自合欢筛管分子具有某些原始性状外，各种植物筛管分子和伴胞都属特化类型或中间型。
The sieve tube members in Albizia bracteate a retain some primitive feature, while in other species, sieve tube members and companion cells are of specialized type or intermediate type.
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