树种

Sandy shrub not only protects environment, but also has economic value.

沙生灌木不但是防风固沙的优良树种，而且还具有很高的经济价值。

Small tropical American shrubby tree; widely cultivated in warm regions for its sweet globular yellow fruit.

美洲热带小型灌木状树种；被广泛种植于温暖地区，球形黄色果实，带甜味。

The advanced technology and newest researched results of forest silviculture and utilization are absorbed fully.

书中充分地吸收了森林培育和森林利用的最新技术和最新研究成果，是新世纪第一部以退耕还林树种为题材的专著。

These can be based on integrated management and silviculture regime and for the realization of local sustainable development of forest resources.

以山西省国营三道川林场为例，论证了模型的适用性，为该林场Ⅰ等林地用材林的树种结构及其龄级结构调整提出了优化调整方案

According to the identification of fossil woods, it shows that they all belong to Araucarioxylon, with the stage age of Qixia, though there are some anatomical differences among them; Following two mathematical clustering analysis methods-analysis of variance and CSDM curve, metrical numerical values are quantitatively analysed, then, skew value of curve and its relationship with leaf longevity are showed.

经过鉴定研究认为，本区的木化石均属于松柏类中的南洋杉型木属，为栖霞阶化石；应用方差分析、CSDM曲线相关分析等数学聚类分析方法，对木化石标本的测量数据进行了定量分析研究，探讨了曲线偏差值与叶寿命的关系，认为本区二叠纪木化石均为常绿树种-南洋杉型木，但有可能存在落叶树种，且生长年限有较大差异。

Contrary,the dry weight of the Slash Pine leat and stem increased.So,it is obvious that the more phosphorus in the soil,the lower

产物向叶片和茎部转移。3个树种的共同特点是：在营养亏缺状态下，苗木根冠比的提高实际上反应了苗木

A provenance trial has been carried out in eleven replications in southeastern China on slash pine of fifteen seed sources from Alabama, Florida, Georgia, Louisiana, Mississippi and South Carolina of the United States of America.

湿地松是一个有发展前途的速生树种。1982年我们利用从美国国际林木种子公司进口的批量生产的种子进行种源试验。该批种子来自美国6个州的15个产地。通过多地点试验，以了解这批种源的遗传品质，比较不同种源的生长表现与适应能力。

An amazing diversity of trees—some 100 native species—make fall in the Great Smoky Mountains uniquely spectacular.

大烟山地区拥有近百种当地特有的丰富树种资源，构成了如此独特而壮观的秋景。

Based on the theory of finite element method and modal analysis, the model of a piano soundboard is established in the ANSYS, then the models' natural frequency, mode shape are calculated. What is more, the influence of tree species on the piano soundboard's fundamental frequency is discussed.

基于有限元法和模态分析的基本理论，利用有限元分析软件ANSYS建立了钢琴音板的有限元模型，然后对钢琴音板进行模态分析，得到了它们的固有频率、模态振型等参数，分析了树种对于钢琴音板基频的影响。

The outcome of the experiment shows the specific heat of dry wood is independent on species.

试验研究发现干燥木材的比热基本上不受树种的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。