维管植物

Lignin One of the main structural materials of vascular plants.

木质素：维管植物中的一种主要物质。

Thorn A stiff sharply pointed woody process that may be found on the stems of vascular plants.

棘的刺：维管植物茎杆上可见的一种坚硬的具锋利尖端的木质结构。

In the riverine wetland, there are 96 species of vascular plants belonging to 87 genera and 41 family and their biodiversity indexes lie between 0.099-1.191, plant community is of simple structure and the advantaged species is planted outstandingly, mostly single excellent community. There are also certain amounts of wetland birds, a large percentage of which are Ardeidae, Gallinula chloropus and Tachybaptus ruficollis .

拟建的化工园区沿江湿地共有维管植物41科87属96种，多样性指数介于0.099-1.191之间，植物群落的结构比较简单，优势种突出，大多为单优势群落；湿地鸟类种类比较丰富，以鹭类、黑水鸡、小鸊鷉所占比例较大：沿江圩田粮棉区为高产稳产地区，粮食作物以水稻、小麦为主。

Casparian strip was frequently regarded as a specific structure of tracheophyta , which appeared as a lignified and suberized narrow zone encircling the radial and transverse walls of the endodermal cells .

是维管植物根内皮层的一种特有结构，其主要特征是在内皮层细胞的初生壁上，围绕细胞径向壁和横向壁的木质和栓质的带状结构。

Casparian strip was frequently regarded as a specific structure of tracheophyta, which appeared as a lignified and suberized narrow zone encircling the radial and transverse walls of the endodermal cells.

凯氏带(Casparian strip or Casaprian band)是维管植物根内皮层的一种特有结构，其主要特征是在内皮层细胞的初生壁上，围绕细胞径向壁和横向壁的木质和栓质的带状结构。

Filicinophyta The largest phylum of spore-bearing vascular plants comprising the ferns and including about 12000 species. It is divided into two main groups, the LEPTOSPORANGIATE ferns and the EUSPORANGIATE ferns.

真蕨门：是有孢子维管植物中最大的一个门，包含真蕨类，约12，000余种，主要分为薄囊蕨和厚囊蕨两种。

The main collaborator for vascular plants, Professor Hang Sun, and six of his students have also visited Harvard to study the Herbaria's rich collections of Asian specimens and literature.

维管植物研究的主要合作者孙航教授以及他的6名学生也访问了哈佛，研究植物园丰富的亚洲物种馆藏及文献资料。

Thus the stamens of angiosperms and the microsporophylls of lower vascular plants are said to be homologous, being derived from a leaflike structure bearing the.

所以被子植物的雄蕊和低等维管植物的小孢子叶可以被称为同源，源于产生小孢子囊的叶状结构。

However,the soil moisture content at soil depths of 45 cm and 60 cm in the areas with microbiotic crusts is much lower than that in the areas without microbiotic crusts(LSD-test,p.05),which reveals that the microbiotic crusts have high capability of maintaining topsoil moisture.

在世界干旱区的大量研究表明，作为荒漠生态系统的重要成分，生物结皮的形成能够增强土壤抗风蚀及水蚀的能力〔3~8〕、增强其周围维管植物的养分循环〔9~11〕、通过生物固氮提供丰富的氮源〔12〕、促进种子库的建立和生物多样性等。

Anthocerophyta The small phylum of nonvascular plants.

角苔：非维管植物中的一个小门。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。