However as the result of the particularity of the arrangement of vascular bundle in the nodal zone in some cases the cutting forces chip form and the quality of the machined surface would be different from the internodal zone .

但由于 竹节部 维管束排列方向的特殊性，在某些情况下，竹节部的切削力、切屑形态以及加工表面质量都和节间材有所差异。

The intrahepatic vascular diseases played igniting and bridging roles in the development of LC . Through vascular inflammation-vascular obstruction-vascular proliferation and rebuilding-vascular fibrosis fibrous zone was finally formed causing disturbance of blood circulation of liver tissues and leading to liver parenchyma denaturalization and necrosis .

在LC的发展中肝内血管病变起引爆和桥梁作用，通过 血管炎症-血管阻塞-血管增生和改建-血管纤维化而最终形成纤维 带，致肝组织血液循环障碍引发肝实质变性坏死。

The convertion of primary vascular system occurs in the Cotyledon Node Zone between root and stem .

观察幼苗的解剖学结构，发现根颈由子叶节 区和下胚轴组成，初生 维 管系统在根和茎之间的转变发生在胚轴上很短的子叶节 区。

The anatomical structure of its primary vascular system was studied and its cotyledon node zone is longer than that of Ranonculaceae .

其初生 维 管系统的解剖学研究表明：子叶节 区明显长于毛茛科植物幼苗，属顶枝伸长型。

Vascular compression was noticed in the root entry zone in 19 cases ( arterial in 16 venous in 3 ) .

术中发现 三叉神经出脑干 处有 血管压迫者19例（动脉血管压迫16例，静脉血管压迫3例）。

Morphological evolution and origin of the vascular plants viewed from the telome theory stelar theory and cotyledon node zone theory

从顶枝学说、中柱学说和子叶节 区学说看 维管植物的形态演化和起源

Vascular compression to root entry zone of sensory root is the main cause of trigeminal neuralgia

感觉根入髓 区 血管压迫是三叉神经痛的主要病因

The results of GUS staining showed that NPC2 expressed mainly in meristematic zone elongation zone and vascular tissue of maturation zone of root tip ;

GUS染色显示NPC2在根中主要是在根尖分生区和伸长区表达，在成熟 区主要是在 维 管组织中表达；

Surgical results showed that vascular compression or contact of the facial nerve root exit / entry zone ( REZ ) was present in 75 cases compression of the facial nerve due to cerebellar tonsillar hernia in one case and no vascular compression in 2 cases .

手术结果显示面神经根部受 血管压迫75例，1例为小脑 扁桃体疝压迫面神经，另有2例手术未见异常。

Conclusion : The main cause of TN is the vascular compression of the root entry zone of nerve sensory root trigeminal .

结论：MVD手术的有效性证明了三叉神经感觉根入髓 区 血管压迫是TN的主要病因。

A Preliminary Study on the Vascular Plant Flora of the Water-Level-Fluctuating Zone in the Three-Gorge Reservoir Area

三峡库区消涨 带 维 管植物区系的初步研究