secondary thickening

The cell wall has undergone secondary thickening , and is often lignified.

细胞壁多发生木质化而次生加厚.

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The secondary thickening meristem originated from the parenchyma cells, which were located the outside of the atactostele.

次生加厚分生组织起源于正常的散生维管束中柱外侧的薄壁组织细胞。

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Fig .6 showing the secondary thickening between the gyres of the helix ( arrow ).

图6示次生壁物质在螺旋构架之间的填充 ( 箭头 ).

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Fiber elongation and secondary wall thickening stages take a large part of time in the course of cotton fiber development, fiber traits such as length, fineness, and strength are determined by fiber elongation and secondary wall thickening process to a great extent.

纤维伸长和次生加厚占纤维发育过程中绝大部分时间，纤维长度、细度和强度等重要性状在很大程度上由纤维伸长和细胞壁次生加厚进程决定。

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Fig.6 showing the secondary thickening between the gyres of the helix ( arrow).

图6示次生壁物质在螺旋构架之间的填充（箭头）。

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The anomalous secondary thickening is by means of a succession of bidirectional cambia.

其异常的次生生长是由维管柱外围发生的异常形成层通过正常的活动方式完成的.

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Secondary vascular tissue, found only in plants with secondary thickening , develops from the vascular cambium.

次生维管组织由维管形成层发育而来, 仅存在于有次生加厚的植物中.

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The secondary thickening meristem divided in tangent.

次生加厚分生组织切向分裂，向外侧产生的细胞分化成薄壁组织；

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