木质部的

The stele includes all primary tissues derived from the procambium consists of pericycle,phloem and xylem.

中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。

There are two zones of cambium: the VASCULAR CAMBIUM, which produces secondary xylem and phloem, and the PHELLEM, which produces secondary cortex and cork or bark.

有两种类型的形成层：一种是维管形成层，产生次生木质部和次生韧皮部。另一种是木栓形成层，产生次生皮层，软木或树皮。

In vascular plants, the xylem and phloem serve to translocate such substances.

维管植物的木质部和韧皮部主要进行对这类物质进行运输。

Annular thickening Rings of thickening laid down on the inner wall of protoxylem vessels and tracheids.

环状加厚：原生木质部导管和管胞的内层环状増厚。

The mature tuberous root accumulates a number of starch grains.

块根的次生木质部发达，导管周围存在额外形成层。

The exterior of root system of Melilotodes in adult period mostly covers a flat thick"velamen"in the course of growth and development. The polysaccharide in the interior of root system lies in secondary phloem and secondary xylem and xylem ray ,which distributes uniformity.

在生长发育过程中，生长5年的扁蓿豆成株大部分根系外面覆盖了一层厚厚的"根被"，其根系内部多糖存在于次生韧皮部和次生木质部及木质射线中，颗粒在细胞中分布较均匀。

The xylem is a system confined to the transport of mineral elements.

木质部是一种专门用来运输矿物元素的系统。

Large proportion of xylem benefit to the water transfer.

叶脉中木质部比重越大，越有利于水分的传输。

A system confined to the transport of mineral elements is known as the xylem.

专门用来运输矿物元素的系统称为木质部。

Students of grade 8 to 10 can point out furthermore that water must be transported by xylem.

国二、国三及高一学生能更进一步指出水分的运输必须经由木质部来完成。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。