查询词典 poplar

The resistance of different species of poplar to canker disease in different 9 poplar species were tested.

对此病的抗性，不同杨树品种之间存在着差异。本试验选取了9种杨树进行试验。

Laboratory experiments were carried out to study the survival and development of the Harmonia axyridis feeding on Chaito phorus popleti on high insect-resisitance hybrid poplar 741(Pb29) and medium insect-resisitance hybrid poplar 741(Pbl7).The API 741 poplar was used as control.The mortality and development during immature period,adult,baby mass.eclosion and sex ratio of H. axyridis were measured.The results showed that:to contrast The API 741, Chaito phorus popleti on Pbl7 and Pb29 has no significantly impacts on eclosion,pupation, ecdysis,mortality of immature period and pupa stage;Although every development stage of ladybeetles were not affected to ,the pupal duration of ladybeetles was lowered than the control;The body mass,eclosion and sex ratio have no significant difference.

通过利用节肢动物群落及各个亚群落的物种丰富度、个体数、均匀度和优势集中性对多样性指数进行通径分析，表明了高抗Pb29和CK节肢动物群落及各个亚群落多样性指数与均匀度和优势集中性的相关系数最高，与其物种个体数关系最为不密切：对各组分进行通径分析均表明的多样性提高是建立在降低优势集中性和增加均匀度指数的基础上的，而且以优势集中性的直接作用效果较为显著。

Then, the outturn table for poplar in Jiangsu has been constructed. By experiment on the poplar stand of different site- index, it shows that the equation fits the growth of poplar merchantable volume well, which can be used to estimate the yield of poplar stand in Jiangsu.

经对不同立地条件下的杨树林分出材量的估计实验，表明该方程适合江苏省杨树生长，为进一步编制全省杨树二元材种出材率表提供了理论与实验方法。

It eventually lost to the Tulip Poplar (also called Yellow Poplar or Tulip Tree) in 1994 but still retained the title of unofficial Kentucky state tree.

"它最终败给了杨树郁金香(又称郁金香树或杨树黄色)，但仍保留了1994年授予他"非官方肯塔基州树

The Tulip Tree is not a poplar, but it is still commonly referred to as Tulip poplar, Hickory poplar, White poplar and Yellow poplar.

郁金香树不是杨树，但它仍是俗称为郁金香杨树、胡桃木杨树、白杨、黄杨树。

According to the observation of the microstructure of small diameter lumber with scan electron microscope, there are many bordered pits of the radial trancheidal wall in the small-diameter Larch, and most of them have pit film. The resin is not only in resin canal, but also in some trancheid and ray parenchyma cells. The drying defects of small-diameter Larch lumbers were the most severe in consecution heating, fluctuating-heats 2h in between, and drying defects were nearly not observed in fluctuating-heats 6h. There is tylosis in the vessel of the heartwood of small-diameter Cathay poplar. The bordered pits of the radial trancheidal wall are dense, and the pits between vessels are alternate, most of them have pit film. Different collapse happened in all the small-diameter Cathay poplar lumbers. The collapse of small-diameter Larch lumbers was the most severe with consecution heating, fluctuating-heats 2h in between, the least with fluctuating-heating 6h.

通过扫描电镜观察发现，小径木落叶松的径壁具缘纹孔数目较多，且多具纹孔膜，小径木落叶松除在树脂道中含有树脂外，在一部分管胞胞腔内以及一些木射线细胞中也含有树脂，在产生缺陷的小径木落叶松锯材中，连续加热方式下锯材的开裂缺陷最为严重，波动2时次之，波动6时几乎没有开裂现象；小径木大青杨心材导管中的层状浸填体含量较多，且径壁具缘纹孔较为密集，管间纹孔呈互列方式，绝大多数纹孔具有纹孔膜，干燥后的小径木大青杨锯材均有不同程度的皱缩现象产生，其中连续加热干燥试验锯材的皱缩现象最严重，波动2时次之，波动6时干燥试验锯材的皱缩缺陷最小。

The small Chinese white poplar, the small Chinese white poplar, it is long I to be also long, defends the border defense together with me.

小白杨，小白杨，它长我也长，同我一起守边防。

Wood species:full okoume,full poplar , okoume face/back poplar core, agathis face/back poplar core

树种：全奥古曼；全杨木；奥古曼面底，杨木芯；奥古曼面底，桐木芯

Wood species:full okoume,full poplar , okoume face/back poplar core, agathis face/back poplar core, birch face/back poplar core,pine face/back poplar core,obeache face/back poplar core and firepoof

树种：全奥古曼；全杨木；奥古曼面底，杨木芯；贝壳杉面底，杨木芯；桦木面底，杨木芯；松木面底，杨木芯；大白木面底，杨木芯和防火板

It is correct that the domestic selling price of Yellow poplar is higher.

E、 因为我要去客户处讨论订单问题，请及时将Yellow poplar 的1C，2C等级分类告诉我！

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。