分类学的

Leave structure of gymnosperm is less changable than that of angiosperm, and thus it is valuable in classification.

裸子植物的叶在结构上比被子植物的叶变化较少，而且不受环境的影响，具有一定的分类学价值。

One of the few, Carl Linnaeus, tried to chart the order in all realms of nature in a series of taxo-nomic works devoted to the animal, vegetable, and mineral kingdoms.

在这些少有的人中的一位林奈在专论动物界、植物界和矿物界的系列分类学著作中尝试勾画存在于自然界所有领域中的秩序。

Corporate Libraries and Purchased Content: The only people who really care about taxonomy and boolean search are librarians, and unfortunately they usually don't know enough about their employer's business to know what to do with the esoterica that requires such tools anyway.

公司资料库和采购目录：要知道，世上唯一在乎分类学和逻辑搜索的人群就是图书管理员，但很不幸的是，他们通常都不够了解老板的生意，自然就对那些实际上渴求这两大学科的重要信息无从下手了。

The results made it possible that in the traditional taxonomy alpaca was breeding camel after domestic guanaco and provided molecular basis for the traditional taxonomy .

结果表明，羊驼与骆马和美洲驼存在的遗传差异相对比羊驼与原驼大，为传统分类学中的羊驼是原驼驯化以后的一种家养驼的提法提供了分子学依据。

All results from morphological, physiological and biochemical characterization, the 16S rDNA sequence and phylogenetic assay identified that the strain belongs to Micrococcus luteus. The DNA fragment encoding mature peptide of fibrinolytic enzyme was cloned by PCR and sequenced.

利用传统细菌分类鉴定方法对其形态和生理生化特征进行了研究，发现其与藤黄微球菌的特征相符， 16S rDNA序列分析的结果也表明它与藤黄微球菌的16S rDNA序列的同源性高达99%，因此该菌在系统分类学上属于微球菌属藤黄微球菌。

Above all,there are some obvious differences among species in distributive density of oil cells, in distribution places of oil cells and mucilage cells and in their sizes. Those structural characteristics are significant for the classification of Lauraceae.

因此，叶片内油细胞的分布密度、油细胞和粘液细胞的分布位置及其大小在种与种之间存在明显的差异，此种结构特征具有分类学上的意义。

The morphology, the characteristics on systematic in similar species,the structure of the main organelle and the myoneme system were given.

给出了所述各种的形态学及分类学特征，主要胞器的结构特点和具有自身特点的纤维系统的结构。

PE will increase the herbarium collection by expanding its collecting and exchange programs (particularly emphasizing important groups distributed outside of China); set up a strong research team of taxonomist s; train the future generation of taxonomist s

标本馆的发展规划：1、通过采集和交换（特别是收集我国没有分布的重要类群）等途径，增加标本馆藏量；2、建立稳定的经典分类研究队伍，培养后备人才，深入开展植物分类学研究；3、加快标本馆数据库的建设；4、进一步加强植物学科普教育基地建设。

Pollen morphology and exine ultrastructure Pollen exine ultrastructure of five species in Stachyurus and one species of its sister group, Crossosoma californicum, were investigated under transmission electron microcopy for the first time. The pollen morphology of Crossosoma californicum was studied under Scanning Electron Microcopy.

花粉形态学和外壁超微结构在透射电镜下研究了旌节花属5个代表种和1个外类群的花粉外壁超微结构，并在扫描电镜下研究了外类群Crossosomataceae 1个代表种的花粉形态学特征，结合前人的研究，探讨了上述性状的分类学意义。

The problem of taxonomy of every species were carried out research combining with the histological structure, morphology of pollens and the characteristic of embryology; while the relation betweeen Cycadaceae and Stangeriaceae and Zamiaceae were analysed.

结合解剖结构、花粉形态、胚胎学特征等方面的许多性状，对各个种的分类学问题进行了细致的研究；同时对与托叶铁科和泽米铁科的关系等方面也进行了一些分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。