sieve tube

常见例句

双语例句

• Companion cells arranse in a row or single cell as long as the sieve tube member.
  伴胞为与筛管分等长的一列或单个细胞。
• The utility model relates to a corundum sieve tube used in the field of oil field and oil well production.
  本实用新型涉及油田油井开采领域中用到的一种刚玉筛管。
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• The sieve tube elements of the secondary phloem were relatively shorter, with simple sieve plates in the slightly inclined to almost horizontal end walls.
  韧皮部筛管分子相对较短，其端壁水平或略倾斜，具单筛板，缺少纤维。
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