查询词典 genera

Any of various extinct elephantlike mammals of the genus Stegodon and related genera, of the Pliocene to the Pleistocene.

剑齿象任一种剑齿象属及相关属的已灭绝象形哺乳动物，存在于上新世到更新世

The existence of nuclei in mature xylem cells is a symbol of primitiveness, for such nuclei all exist in secondary xylem of families or genera which are in the rather primitive stage of development in plant systems.

成熟木材细胞中的细胞核是一个原始的特征，均出现在植物系统发育上较为原始的科属木材中。

The result shows that the pollen grains of the four genera are mainly spherical and subspherical, occasionally oblate or prolate.

结果表明这两个地区菊科4个属的花粉粒大多为球形或近球形，少数是扁球形或长球形。

Eighty three species of protozoan,belonging to 53 genera of 31 families of 12 orders,were reported.

共观察到83种原生动物(仅包括肉足虫类和纤毛虫类)，隶属于53属31科12目。

China has a rich pteridophyte flora, which is composed of 2600 species of 230 genera belonging to 63 families. Approximately 10% of the species are endemic.

中国蕨类植物类群十分丰富，由63科230属约2600种组成，其中约有10%的种类为中国特有。

And vermifuge; extracted from the wood an bark of trees of the genera Quassia and Picrasma.

一种味苦的化合物，用作杀虫剂，从苦木属树木木材和树皮中提取。

A bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood an bark of trees of the genera Quassia and Picrasma.

一种味苦的化合物，用作杀虫剂，从苦木属树木木材和树皮中提取。

A bitter compound used as an insecticide and tonic and vermifuge ; extracted from the wood an bark of trees of the genera Quassia and Picrasma.

一种味苦的化合物，用作杀虫剂，从苦木属树木木材和树皮中提

By analysing the feature of ITS sequence of monocots with reticulate vein,the differentiation and variation characters of ITS sequences in the families,genera and species studied were discussed.

并通过分析单子叶网状叶脉植物和菝葜科部分种类的ITS序列特点，研究了该片段在科、属、种间存在的关系和变异特点。

Through systematic investigation, the authors found that on Shenzhen golf court there were seven main genera of pests(Noctuidae, Gryllotalpidae, Rutelidae, Melolonthidae, Delphacidae, Tenebrionidae and Curculionidae, Aphididae, Formicidae), some principal diseases (such as Rhizoctonia disease, white leaf disease) and harmful Algae.

经过系统调查，发现在深圳高尔夫球场主要害虫有夜蛾、蛴螬、飞虱、拟步甲、象甲、蚜虫和蚂蚁7个类群，主要病害有褐条斑病和白叶病，还有藻类有害生物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。