sieve tube

Companion cells arrange in a row or single cell as long as the sieve tube member.(伴胞为与筛管分子等长的一列或单个细胞。)

The end walls of sieve-tube elements in the phloem have 4-6 specialized sieve areas which together form compound sieve plates.(韧皮部中筛管分子的端壁是由4—6个梯状排列的筛域组成的复筛板。)

This machine USES the S-shaped milling cutter to extrude materials into particles through stainless steel sieve tube.(本机是用S型碾刀，通过不锈钢筛筒的筛孔，把物料挤出颗粒的设备。)

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。)

Aimed at the current status of petroleum slotted sieve tube, a kind of new typed slotted sieve tube with compound slot was developed.(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。)