查询词典 conifers

According to Bract Scale and Seed Scale Complex theory and the observation results in this experiment, the author considers that the Gnetum genus belongs to the evolvement line ofBSSC. and is more closer to conifers than other seed plant.

根据苞鳞-种鳞复合体理论，结合本文的观察结果，作者认为买麻藤属植物是苞鳞-种鳞复合体演化线上的成员，与松杉类植物的关系比较近。

It is normally formed from the secondary xylem and thus found in plants that show secondary thickening, namely the conifers, Gnetum and dicotyledons.

木材丛次生木质部中形成，因此只有在进行次生加厚的植物中才具有，如：松类、 Gnetum 和双子叶植物。

A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen-bearing sacs or naked ovules or seeds.

球果单性裸子植物的生殖器，例如针叶树和铁树目植物，一般由覆满鳞片和褶皱的中心轴构成，长螺旋状排列的孢子叶，孢子叶最终成为花粉囊或裸露的孢子或种子

A unisexual reproductive structure of gymnospermous plants such as conifers and cycads, typically consisting of a central axis around which there are scaly, overlapping, spirally arranged sporophylls that develop pollen-bearing sacs or naked ''.

球果单性裸子植物的生殖器，例如针叶树和铁树目植物，一般由覆满鳞片和褶皱的中心轴构成，长螺旋状排列的孢子叶，孢子叶最终成为花粉囊或裸露的孢子或种子

Genus of fungi that produce galls on cedars and other conifers of genera Juniperus and Libocedrus and causes rust spots on apples and pears and other plants of family Rosaceae.

在雪松和别的松类植物上产出苦汁的真菌的属，在苹果树和梨树和别的植物上造成菌锈的蔷薇科的属。

Modern conifers were spreading , and leptosporangiate ferns underwent adaptive radiation .

现代松柏类蔓延传播，薄囊蕨类植物适应性辐射生长。

The seed-ferns declined, and there was a great increase in the number and diversity of cycads, palmlike gymnosperms, and conifers.

种子蕨趋于减少，而苏铁类、指状裸子植物和球果类，无论是多样性还是在数量上都有大幅增长。

The feature of this assemblage indicates that conifers represented mainly by elements of Pinaceae flourished at basin margins.

孢粉面貌反映盆地周缘广泛分布有以松科为主的高山针叶林带。

Pinaceae A family of conifers that bear separate male and female cones,and in which the seeds are borne between the cone scales and do not have arils.

松科：指产生分离的雌雄球果的针叶类植物的一个科。其种子产生于珠鳞之间，且无果皮。

Type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers.

多孔菌属的模式属；包括致桦树和松树主要的病原体。

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。