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In this thesis, research on alleviation of autotoxicity by planting mixture of Chinese fir and Broadleaf trees and developing undergrowth vegetation were also done. The results showed that Michelia macclurei and Cinnamomum camphora had positive allelopathic effect on the growth of Chinese fir saplings and developing undergrowth vegetation improved soil decline of Chinese fir plantation.

另外，论文还从植物化感作用的角度，对克服杉木人工林连栽障碍的其它生产措施，如营造混交林及人促林下植被的发育生长，进行了研究：提出了与杉木化学生态关系良好的两种伴生树种，并从化感作用角度证明人促林下植被发育有利于克服杉木人工林的连栽障碍。

Combining the study characteristic and the current construction method of the bi-arch tunnel in domastic and aboard, the paper deeply study the middle heading construction method and the benching tunneling construction method.

结合目前国内外对双连拱隧道的研究特点以及国内外对双连拱隧道施工方法的现状，本文针对中导洞施工左右主洞不同步开挖和理想的同步开挖法进行了较为深入的研究工作。

The key point of the structure of the utility model is that: the other side of the reducer that is arranged on the platform is provided with a hoisting device; the roller shaft end of the electronic controlled windlass is provided with a hub, a damper brake is arranged outside the hub; the input castellated shaft of the reducer that is arranged on the electronic windlass is provided with duplicate gears that have different amount of teeth.

本实用新型包括标准节，两侧标准节的中间为平台，电控卷扬机的卷绳通过平台上的滑轮同吊盘相连；平台上的减速器的一侧设置有可提升平台的具有卷绳的滚筒，平台上设置有具有滑轮的支架，其结构要点平台上的减速器的另一侧设置有提升装置；电控卷扬机的滚筒轴端设置有轮毂，轮毂外设置有制动闸；电控卷扬机的减速器的输入花键轴上设置具有不同齿数的双连齿轮，双连齿轮之间的凹槽内的拨杆同减速器外的摇把相连。

The families Cercidiphyllaceae, Daphniphyllaceae, Hamamelidaceae and Saxifragaceae are closely located, while the relationships among them remain unsolved even if more repres...

尽管增加了金缕梅科的取样密度，它们之间进一步的关系仍未得到分辨，结合它们的形态特征，连香树科和交让木科应置于金缕梅目内。rbcL基因树上反映出传统的&低等&金缕梅类成员领春木科与毛茛类植物聚在一起；悬铃木科与昆栏树科和水青树科关系较近，而与金缕梅科关系较远；杜仲科与低等金缕类的核心科———金缕梅科的关系似乎较除连香树科之外的其它低等金缕类成员近。低等金缕类植物由一些古老、孤立的科组成，且是多系的。

Weirder is,"Good friend buying and selling " in package, the method that connects do sth over and over again is very much the same, for instance " go black coalpit digs coal "," hunger does not eat one day to the meal "," be duped in the ave Ma Qi "; Pacify method criterion or see a movie, in all rod of sup, Mai Bing --, the group of 1000 oak, move the time that uses toe to want to choose other way to be done not have repeatedly?

比较诡异的是，&好友买卖&组件里，连折腾的手段都是大同小异，比如&去黑煤窑挖煤&、&饿一天不给饭吃&、&在大街上当马骑&；安抚手段则还是看电影、共进晚餐、买冰棍———千橡的团队，连动动脚趾想点其他法子的时间都没有？

In new network news: Commissarial choosing sentiment is all-time and intense in the center of Kuomintang, lian Shengwen of the cornstalk that join battle although up to the vote of 2000 tickets, take next complete stands the first high bank note is elected to hold the post of a party representative newly.

中新网消息：国民党中央委员选情空前激烈，连战长子连胜文虽然以近两千票的得票数，拿下全台第一高票当选新任党代表。

Both the commissural region of main valve and commissural region of main and accessory valve have their own exact posi-tion.

主瓣连合区和主副瓣连合区都有明确位置，它们可以密闭心室与心房的交通，使血液不能逆流入心房。

Methods The hearts of171adult corpses of Chinese Han nationalitywere observed for the forms of all the commissural region of the main valves and the commissur-al region of main and accessory valves.

对171例中国汉族成人心脏行右房室瓣主瓣连合区和主副瓣连合区的形态学观测。

Therefore, in the present study, a retrograde and anterograde experiments were made in the rat to address this issue. After injection of cholera toxin B subunit, a retrograde tracer, into Barrington's nucleus or D-region, some retrogradely labeled neurons were found in lamina I, sacral parasympathetic nucleus and dorsal commissural nucleus of the lumbosacral spinal cord segments. Injection of biotinylated dextran amine into lamina I, sacral parasympathetic nucleus and dorsal commissural nucleus, respectively, a large number of BDA-labeled axon terminals were seen in Barrington's nucleus and D-region.

发现，将逆行示踪剂霍乱毒素 B 亚单位（ Cholera toxin B subunit； CTb ）注射到 Barrington's 核或 D 区后，在大鼠腰骶髓 I 层、骶髓副交感核和后连合核内分布有一定数量的 CTb 逆标神经元；将顺行示踪剂结合生物素的葡聚糖胺(Biotinylated dextran amine； BDA)分别注射到腰骶髓 I 层、骶髓副交感核和后连合核内后， Barrington's 核和 D 区内出现大量顺行标记的轴突终末。

objective to confirm the optimal harvest age and cultivating condition, and provide theoretic knowledge for the planting of coptis teeta wall.

目的 确定云连的最适宜采收年限和栽培技术，为今后云连生产提供理论依据。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。