分类学的

For many species, chromosome number is a useful taxonomic character.

对许多物种来说，染色体数目是重要的分类学特征。

OBJECTIVE To make the kit to identify Cornu Cervi Pantotrichum with molecular taxonomy.

目的 建立中药材鹿茸的分子分类学鉴定试剂盒。

Uniflos belong to type I. The characters mentioned above are of much significance in delimiting sections and species in Cotoneaster .

叶表皮微形态特征可以为栒子属植物组及种的分类学处理提供解剖学资料。

Cryptogam In early classifications, any plant that reproduces by spores or gametes rather than by seeds.

隐花植物：在早期分类学中，任何产生孢子或配子而不是种子的植物。

The results support the traditional taxonomy based on morphology, but diversity presented more commonly in the subgenus Culex

系统进化关系分析结果与经典分类学分类系统接近一致，但库蚊亚属的进化可能更具多样性。

Methods: Female genitalia of 52 species of Chinese Culex mosquitoes were dissected and glass-slices of the specimens were prepared, on which a comparative analysis was conducted.

目的：探索我国库蚊雌性尾器的分类学价值。方法：常规方法制备我国库蚊属52种雌性尾器玻片标本，并分析比较。

The study of taxonomy must necessarily involve the amassing of an encyclopaedic knowledge of plants.

分类学研究一定要积累广博的植物知识。

Chemotaxonomic studies in Ferula of China on the basis of flavonoids.

中国阿魏属的黄酮体成分及其分类学意义。

With the ability to identify the vascular plants by the herbarium of PPI and in the fields.

植物分类学实习乃为使学生在 PPI 标本馆与野外具有鉴定维管束植物的能力。

Recent graduate students have won prizes for best papers at national meetings in fields such as botany, ecology, entomology, evolution, herpetology, ichthyology, marine biology, parasitology and plant systematics.

近年来该系学生的论文多次在全国性专业会议上获奖，研究领域涉及植物学、生态学、昆虫学、进化、爬虫学、鱼类学、海洋生物学、寄生虫学和系统分类学。

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。