查询词典 snag tree

Salix matsudana, Ulmus pumila, Quermus mongolica, Populus alba×P.beroliensis and Betula platyphlla are frontal 5 tree species with weight value 90.37, 90.12, 88.12, 87.55 and 86.2 respectively, were used for farmland protection forest; Acer negundo, Salix matsudana, Juniperus rigida, Fraxinus mandshurica and Ulmus pumila are frontal 5 tree species with weight value 78.14, 76.92, 75.96, 74.72 and 74.56 respectively, were used for urban protection forest; Ulmus pumila, Salix matsudana, Populus alba×P.beroliensis, Acer negundo and Larix gemelinii are frontal 5 arbor tree species with weight value 80.07, 79.07, 77.5, 72.42 and 71.67 respectively, were used for road protection forest; Salix matsudana, Populus alba×P.beroliensis, Ulmus pumila, Larixgemelinii and Betula platyphlla are frontal 5 tree species with weight value 92.37, 88.72, 86.62, 85.82 and 85.7 respectively, were used for river protection forest; Fraxinus mandshurica, Larix gemelinii, Populus alba*P.beroliensis, Ulmus pumila and Salix matsudana are frontal 5 tree species with weight value 89.61, 8.35, 87.12, 85.56 and 80.15 respectively, were used for wood forest; Cornus alba, Prunus tomentosa, Primus triloba, Syringa obalata and Sambucus williamsii are frontal 5 shrubs with weight value 82.93, 81.23, 80.85, 78.38 and 77.78 respectively, were used for landscape forest; and Acer negundo,Malus baccata, Sorbus pohuashanensis, Prunus maackii and Prunus padus are frontal 5 arbors with weight value 82, 81.52, 80.3, 79.62 and 78.9 respectively, were used for landscape forest; Prunus salicina, Prunu

根据哈尔滨地区不同林种的功能要求，给出了不同指标的期望值，通过查询系统可以得到旱柳、榆树、蒙古栎、银中杨、白桦为符合农田防护林的前五位的树种，权重值分别为90.37、90.12、88.12、87.55、86.2；糖槭、旱柳、杜松、水曲柳、榆树为符合城市防护林的前五位的树种，权重值分别为78.14、76.92、75.96、74.72、74.56；榆树、早柳、银中杨、糖槭、兴安落叶松为符合道路防护林的前五位的乔木树种，权重值分别为80.07、79.07、77.5、72.42、71.67；旱柳、银中杨、榆树、兴安落叶松、白桦为符合河岸防护林的前五位的树种，权重值分别为92.37、88.72、86.62、85.82、85.7：水曲柳、兴安落叶松、银中杨、榆树、旱柳为符合用材林的前五位的树种，权重值分别为89.61、88.35、87.12、85.56、80.15；红瑞木、毛樱桃、榆叶梅、紫丁香、接骨木为符合风景林前五位的灌木树种，权重值分别为82.93、81.23、80.85、78.38、77.78，糖槭、山丁子、花楸、山桃稠李、稠李为符合风景林前五位的乔木树种，权重值分别为82、81.52、80.3、79.62、78.9；李、杏、文冠果、山楂、野梨为符合经济林的前五位的树种，权重值分别为88.85、80.88、73.25、69.35、63.77。

This book gives a detailed description of the origin, development, raw materials, artistic creation and techniques of Chinese tree-root art, which falls into four categories — tree-root shaping, carving, furniture made of tree-root and bonsai. From the perspective of environmental protection, it explores the trend of development of tree-root art, laying a theoretical foundation for the establishment of tree-root art discipline.

本书对中国树根艺术的起源、发展、根材、艺术创作和制作工艺等方面作了详尽的论述，将树根艺术分为四大门类，即树根艺术造型、根雕、树根家具和树根盆景，并从人类目前对大自然环境保护的认识立场出发，对树根艺术的发展趋势进行更深层次的思考和探索，从而为建立树根艺术的学科奠定了理论基础。

The progresive regressing and regressing were made on the fruit production to the parameter of tree framework of gold delicion / M9 / Shandingzi in 6 years old based on the date of yeild investigations and measurment. By the marginal analysis and fuzzy clasification.These parameter were defined that trunk circumafename= 24.93cm, highth of tree=2.5m,average width ot tree=2.5m,size of tree=5.05～5.6m~3, number of length branch / per tree = 101-161.number of middle branch / pe...

本文以金冠/M9/山定子6年生树体为试材，对树体结构参数进行田间测定，用多元回归、逐步回归的方法分析出十种树体结构指标对产量的效益，用边际分析的方法和聚类的方法研究出金冠/M9/山定子产量最高时树体结构参数为：干周=24.93cm，树高=2.5cm，平均冠径=3.01m，冠高=2.5m，树冠体积=5.0～5.6m~3，单株长枝数=101～161个，单株中枝数=122—142个，单株短枝数=601～616个，单株枝量=847～903个，单株叶面积=13.5m~2。

The这棵kapok tree is said to be in Jianmiao when planted together, the destruction of the temple for some time, also with the withered kapok tree, the villagers have to cut this tree repair the temple, the axes bounced out, the villagers of a swollen arm , And then no one Gandong this tree, after the resurrection of the dead tree.

而这棵木棉树据说是在建庙的时候一起栽种，有一段时间庙宇毁坏，木棉树也跟着枯萎了，有村民想砍这棵树修庙宇，结果斧头被弹掉，该村民手臂肿了一个月，之后便再也没有人敢动这棵树了，之后，该树死而复活。

The ionic space charge in the micro-voids of water tree will produce a period vibration by AC voltage stimulating. Under superposition voltage, the vibration can impel the ion penetrating into the tiny crackle between micro-voids of water tree and lead to a change in the conductivity of water tree. With this the ultra-low frequency spatial current signal of the water tree would be emerged in detecting circuit. The polarization and depolarization of the polar end-group of the PE formed in water tree developing will also contribute to this special signal.

本文分析认为，水树枝中的离子型空间电荷在几种电压共同作用下会发生周期性振动，这种振动会促使水树枝中的导电离子在较低的叠加电压激励下进入连接水树枝微孔的微裂纹，微裂纹导通不仅导致水树枝的电导发生变化，而且在检测回路中会有水树枝老化超低频特征信号电流产生。

On this basis,thelocally finite tree set is defined,and the locally finite tree martingales are defined interms of the locally finite tree set,and then a tree martingale decomposition theoremis obtained by the locally finite tree martingales.

在这个结果的基础上，我们定义了局部有限树集的概念，利用这个概念又定义了局部有限树鞅，通过局部有限树鞅给出了树鞅分解定理。

On this basis,thelocally finite tree set is defined,and the locally finite tree martingales are defined interms of the locally finite tree set,and then a tree martingale decomposition theoremis obtained by the locally finite tree martingales.

基于这个分解，证明了树鞅指标集同构于一个有向森林，这个森林中的每一棵树都是有向局部有限树，这就证明了树鞅指标集有一个分解，它的每一部分同构于一个有向无限、局部有限树。

There are remarkable differences among different succession community of the fallen tree and snag in terms of their volume and decay degree and decay degree of the fallen. The distribution trend generally abides by the rule of increasing with the succession. The decay degree obeys normal distribution.

通过研究表明：长江上游暗针叶林生态系统的CWD总量是101.74 m3/hm2，它的组成体--倒木和站杆在不同演替阶段的容积和腐烂程度是明显不同的，随演替递进，程度加大，分布呈正态分布。

M 3/hm 2. There are remarkable differences among different succession community of the fallen tree and snag in terms of their volume and decay degree and decay degree of the fallen. The distribution trend generally abides by the rule of increasing with the succession. The decay degree obeys normal distribution.

通过研究表明：长江上游暗针叶林生态系统的CWD总量是 10 1 74m3/hm2 ，它的组成体———倒木和站杆在不同演替阶段的容积和腐烂程度是明显不同的，随演替递进，程度加大，分布呈正态分布。

Early spring uses "to protect sets up general" 100 time of fluids + Baume 3 lime sulphurs clear gardens disinfection, not only the sterilization extinguishes the insect, but also can suppress the extraneous source gene stable heredity, thus stimulates a series of defense response, causes the fruit tree to have the intense resistance, at the same time may hit stirs up the fruit tree "the gene alarm clock", when does the reminder fruit tree regain consciousness from the hibernation, when germinates, blossoms, the sensitive plant nerve, causes the fruit tree vegetal period to be full of vigor.

早春用"护树将军"100倍液+波美3度石硫合剂清园消毒，不但杀菌灭虫，还能抑制外源基因稳定性的遗传，从而激发一系列防卫反应，使果树产生强烈抗性，同时可撞激果树的"基因闹钟"，提醒果树何时从冬眠中苏醒，何时发芽，开花，敏感植物神经，使果树生长期精神饱满。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。