查询词典 poplar

Through 7 years study, the variation regulation and model of white poplar were known well, and 3 best seed sources and30 best clones were screened, making the genetic gain more than 22~28 percent, The results presented here provide a scientific foundation for silvicultural division.

经过7年的研究，摸清了毛白杨的变异规律及模式，筛选出3个种源，30个优良无性系，遗传增益达22%~28%，为造林区划提供了科学依据。

The result of clusting analysis of 52 counties and cities in northeast Chinawas the division of the risk grade of poplar bacterial canker into 4 districts thatwere seriously occurring district、commonly occurring district、occasionally oc-curring district and unoccurring distric,according to nine weather factors whichwas closely correlated to the bacterial canker.

以与病害密切相关的九项气象因子为指标，对东北地区52个市县进行聚类分析的结果，将东北地区杨树细菌溃疡病的危险等级划分为重发区，常发区，偶发区和不发区四级，这与病害调查的实际情况也是基本一致的。

Poplar plywood ,exotic outer layer with ureic bonding

白杨木夹板，悦目外层胶合

Hum, doubtful point is numerous, how to say, poplar complacent want to say only, probably this is the contribution of little Lin Wuzu probably!

嗯，疑点众多啊，怎么说呢，杨自得只想说，或许这大概都是少林五祖的功劳吧！

But after about a month to restore the root system, the leaves of nitrogen, phosphorus and potassium contents in treatment 5, 6, 7, 8, 2 gradually higher than the control. This is because the absorption of fertilizer during this period shown to promote on the elements, and with the passage of time the processing elements continue to be reduced to a leaf until the latter part of the growing season is also higher than the control.3.The pH value in rhizosphere soil of treatments poplar plantation were lower than that in non-rhizosphere soil, but the content of organic,available nitrogen, phosphorus, potassium, utility cuprum and utility zincum were all higher than those in non-rhizosphere soil.

但是经过大约一个月的根系恢复，处理5、处理6、处理7、处理8、处理2叶片中的N、P、K逐渐高于对照，这是因为施肥对元素的吸收在这一期间开始表现出了促进作用，并且随着时间的推移各处理中元素含量持续降低至落叶，直至后期的生长季节也高于对照。3、各处理的杨树林地根际土壤pH值均低于非根际土壤，而有机质、碱解氮、速效磷、速效钾、有效铜和有效锌的含量均高于非根际土壤，与其它处理相比，80cm两侧断根施肥处理的根际土和非根际土壤速效养分含量最高，差异达显著水平。

Xia Yang and his horse is walking continuously in the shining courtyard gradually, half a hour passed, Xia Yang was waiting for the finally time, also is waiting for any other things as if in legend...... the sand in white railing was grayish white under the move, the joggling trunk of white poplar ripped the Xia Yang and "go well up to bridle's" shadow to smashing!

夏阳和他的爱马一直在渐渐发亮的院子里静静的走着，半个小时过去了，夏阳在等待那最后惨烈的一幕时，又在冥冥之中似乎等待着什么……马场白色围栏中灰白的细沙在黎明前的柔光下显得惨白，白杨树摇曳得躯干把夏阳和&勇往直前&相依的影子撕得粉碎、粉碎！

Poplar is an important fast-grow specie for industry in China, which was planted widely on Changjiang river and north area.

杨树是我国速生工业用材林的重要树种，在长江流域及以北地区广泛种植。

Rhynchaenus empopulifolis Chen is one of the important defoliating insect pests of poplar trees in northern China.

杨潜叶跳象Rhynchaenus empopulifolisChen是一种重要的杨树食叶害虫[1]。

The results show that the transgenic hybrid poplar can decrease the number of defoliating insects and lower the dominance of the dominant species, and increase the insect diversity and the evenness of insect pest subcommunity.

结果表明，转基因741杨能明显降低群落中食叶害虫的数量，同时，使群落中食叶害虫优势种的优势度降低。

The Song of Maple-poplar Village deconstructs the ideology of nation and family, revealing the man's exiling anxiety in face of the difficulties, it breaks through the limit of rational imagination of nation-state which is based on democratic and science since"May 4th", by discussing the original desire for survival of the individual , it also offers one kind of reflective method of imagination.

枫杨树山歌》解构家国意识，揭示了人面对存在困境的一种&逃亡&焦虑，并通过对个体原始生存欲望的探讨打破了&五四&以来以民主、科学建构起来的理性民族国家想像，提供了一种反思性的想像方式。

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。