查询词典 Betula
- 与 Betula 相关的网络例句 [注：此内容来源于网络，仅供参考]
-
A new species of Betula L. from China.
中国桦木属一新种。
-
A new species of Betula L. from China.
标题 中国桦木属一新种。
-
The variation and correlation of wood properties of Betula platyphylla in five natural stands in northeast China were studied.
以东北5个白桦天然林种群为对象，较全面地研究了白桦木材材质性状的差异及相关性。
-
This shows natural Betula L. in Hebei province basically belongs to the relative even-aged stand.
这表明目前河北省的桦树天然林基本上是同龄林。
-
Classification and distribution of the genus Betula L.
标题 内蒙古桦木属植物的分类与分布。
-
Any betulaceous tree or shrub of the genus Betula having ''.
桦属的任何一种桦树或灌木，有薄的剥落的树皮。
-
We still skim the backwaters of ponds and streams for the seed of Betula, Acer Salix and Populus species
我们仍然要在池塘的静水上和溪流中捞取桦木，槭树、杨、柳等树的种子。
-
At high elevation above 1800 m, Betula ermanii was the only species that could form a mono-dominant community.
随着海拔的上升，进入主林层的树种越来越少，海拔高于1800m时，岳桦是唯一可以成为建群种的树种，形成了单优势种群落。
-
Most of Betula L. natural stands are young^ middle and nearly mature stand.
3河北省桦树天然林多数为幼、中、近成熟林。
-
This paper describes megasporogenesis, megagametogenesis, and the process of embryonic development of the female inflorescence in 20-year-old Betula platyphylla.
以20年生白桦的雌花序为材料，研究了白桦的大孢子发生、雌配子体形成和胚胎发育过程。
- 推荐网络例句
-
Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。
-
In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
-
The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想，是邓小平经济理论体系中的重要组成部分，是我国经济建设根本任务的一个重要方面。