您要查找的是不是：
- stratified phloem 叠生韧皮部
- This would be an example of a stratified sample. 这就是一个典型抽样的例子。
- Feudal society was rigidly stratified. 封建社会等级森严。
- There is a little idioblasts in the phloem. 叶脉维管束中韧皮部都具有异细胞存在。
- Methods Stratified chester random sampling. 方法采用分层整群随机抽样的调查方法。
- Thickly cornified stratified squamous epithelium. 掌皮（厚的角化复层扁平上皮）。
- Stratified structures led by chieftains. 有首领的分级形式；
- The vascular cambium is located between the xylem and the phloem. 维管形成层位于木韧之间。
- Only dielectric stratified media will be treated in this section. 这一节将只讨论介质分层媒质。
- Primary phloem PHLOEM derived from the procambium in the young plant. 初生韧皮部：指幼嫩植物中来源于原形成层的韧皮部。
- In general, all free-surface liquid motions are stratified flows. 从这个意义上来说，一切自由表面液体运动也都是分层流。
- The stratified,privileged class composed of these appointees. 特权阶级由这些被任命者组成的已形成等级的特权阶级
- The stratified, privileged class composed of these appointees. 特权阶级由这些被任命者组成的已形成等级的特权阶级
- DESIGN:A stratified randomized cluster sampling survey. 设计:分层随机整群抽样调查。
- A root-like structure lacking conductive tissues (xylem and phloem). 无输导组织(木质部和韧皮部)的根状结构。
- The measured depth spectrum and stratified images are presented. 给出了实测深度谱和分层成像结果。
- The secondary phloem consisted of sieve cells and phloem parenchymas. 根的次生韧皮部则由筛胞和韧皮薄壁细胞组成。
- DESIGN:A stratified randomised cluster-sampling investigation. 设计:分层随机整群抽样调查。
- 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。
- American society is becoming increasingly stratified. 美国社会越来越分层次了。
