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The present thesis showed that root elongation of alfalfa (Medicago sativa L.) during a 24-h period was inhibited by 80% by the exposure to 5 umol L-1 Al and its roots was obviously stained by eriochrome cyanine R; however, the roots of stylo need to be exposure to 30umol L-1 Al in order to get obviously stained with its root elongation was inhibited by 68%, which shows, for stylo, its ability of tolerance to aluminum is strong.

本研究发现，5 μmol L~(-1)AlCl_3使紫花苜蓿根长抑制80.0％，铝处理后的根尖被铬天青明显染色，而柱花草经30 μmol L~(-1)的AlCl_3处理后方观察到根尖明显染色的现象，根的伸长受抑制68.0％，表明柱花草抵御铝毒能力较强。

This paper has studied the physiological and biochemical changes during the period of forming strong buds of tree peony, and expect to provide academic basis for extending its view value and economic benefit . The main results are as the following:1 Under the field condition, Characteristics of photosynthesis of tree peony are very regular. From before blooming to the prophase of abducting buds that after blooming ,that is April,May and June,the net photosynthetic rate of tree peony is higher than the other period .It indicates that this period is very important for accumulating photosynthetic products of tree peony . So, if we want to get quality flower of tree peony ,it is very important to strengthen the management of tree peony cultivation and to ensure provide the fertilizer and water.2 From the middle ten days of June, with the time elapsing and with the environment conditions worsening, the characteristics of photosynthesis of tree peony decline deeply. But it is different among different tree peony breeds. For example , cv. Wu Long Peng Sheng can also has higher net photosynthetic rate, it indicates that cv. Wu Long Peng Sheng is super than the other two tree peony breeds when adapting the environment conditions and cv. Wu Long Peng Sheng has wide prospect to extend .3 The main factors of effecting the characteristics of photosynthesis are stomatal factor and non-stomatal factor ,that is the ability of photosynthesis of leaf cells. Under the environment of high light intensity in midsummer, if overshadow tree peony properly, then it can slow the declining of chlorophyll content, and increase the net photosynthetic rate and benefit for the accumulating of photosynthetic products.4 The content of soluble sugar in the root of tree peony is the highest among different organs during the period of forming strong buds . According to analyse ,we believe that the soluble sugar will compose starch then, and provide the solid base of material for the growth and development next year. It provide us strong academic basis of adopting the method of cultivating root and protecting root under thefield environment conditions .In other words ,it will help to increase the health level of the whole plant of tree peony and will be beneficial to forming quality tree peony flower if we strengthen the management of root. 5 To tree peony, the endogenesis hormone is important for its growth and development .In the prophase ,that is about the blooming of tree peony and the mid-summer ,IAA and ZR contents are higher and GA content is lower and its changes are very little, and the content of ABA is decreasing . This indicates that IAA and ZR act the important promote function for growth and development of tree peony in this period, and the function of GA is not important. Bur in the period of anniversary senescence of tree peony , the content of IAA and ZR begin to decrease ,while the ABA content has a certain rebound .T

本研究对几个牡丹品种壮芽形成过程中的某些生理生化变化做了研究，以期了解牡丹生长发育过程中生理生化的变化规律，探讨大田栽培条件下提高牡丹花质量的栽培措施和管理技术，为提高牡丹的观赏价值和经济效益提供理论依据，结果如下：1 大田栽培条件下，牡丹光合特性在生长发育过程中表现出极强的规律性，牡丹各品种的光合速率从牡丹开花前，到牡丹花谢后的花芽诱导期前期（6月10日之前），也就是在4、5、6月份，各牡丹品种的净光合速率相对与其他时间都维持在比较高的水平，这说明，在这段时间，是牡丹光合产物积累的重要时期，因此，要保证得到高质量的牡丹花，在这段时间加强对牡丹的栽培管理，保证这个时期的肥水供应十分重要。2 从6月中旬后，随时间的推移，环境条件的恶化，牡丹的光合性能剧烈下降，但是不同牡丹品种间仍有差异，比如，乌龙捧盛仍可维持较高的光合水平，这说明了乌龙捧盛这个牡丹品种对于环境的适应性较之其他牡丹品种高，有着广泛的推广前景。3 影响牡丹光合性能的主要因子是气孔因素和非气孔因素即叶肉细胞的光合能力，在盛夏高温高光强的环境条件下，对牡丹进行适当遮荫，能缓解牡丹叶绿素水平的下降，适当提高Pn，有利于光合产物的积累。4 可溶性糖在牡丹各品种的壮芽形成过程中，根中可溶性糖的含量在牡丹各部位中始终维持最高水平，分析认为这些可溶性糖在根系中进一步合成淀粉等储藏性物质，为来年牡丹的生长提供雄厚的物质基础，这为我们在大田栽培条件下对牡丹采取养根护根的栽培措施提供了有力的理论依据，即在大田栽培条件下，加强对牡丹根系的管理，有助于提高牡丹整株的健壮程度，有益于形成高质量的牡丹花。5内源激素对牡丹的生长发育调节作用是十分明显的，在前期，即开花前后和盛夏，IAA和ZR含量维持在比较高的水平，GA含量低且变化不明显，ABA含量逐渐降低，说明了IAA和ZR对牡丹在这段时间内的生长发育起到重要的促进作用，GA的作用不是很明显，ABA可能在高温高光强下有明显的升高，也说明了ABA的确有一些促进作用，但是到了牡丹周年衰老期，IAA和ZR的含量开始下降，ABA含量却有了一定程度的反弹，说明了IAA和ZR的作用开始降低，ABA起到了促进衰老的作用

If Boeing, which in a fit of sulkiness moved its headquarters to Chicago earlier in the decade, were now to relocate even its assembly out of state—possibly to the South, where its European rival Airbus has already set up shop—Washington's various distinct economies could absorb the shock.

假如10年前波音公司一个不高兴，把总部搬去了芝加哥，甚至现在又要把它的工厂全部迁出华盛顿州，可能是搬去南方的某个地方，它的竞争对手欧洲的空中客车公司已经在那儿建了厂。

It is the sure sign of the death of a religion when its mythic presuppositions become systematized, under the severe, rational eyes of an orthodox dogmatism, into a ready sum of historical events, and when people begin timidly defending the veracity of myth but at the same time resist its natural continuance--when the feeling for myth withers and its place is taken by a religion claiming historical foundations.

音乐的精灵便抓住了垂死的神话；在他手上神话又若枯木逢春，百花齐放，呈现出前所未有的颜色，发出使人向往超自然世界的芬芳。

As the production of human brain activity, knowledge has its own modality and does not subject its existence to its tangibility.

知识的本质是信息，知识是人脑的产物，产生于大脑的知识并非一定为他人感知，存在于大脑中的知识也具有其形式，知识不以是否能为他人感知为前提；知识产权制度不是用来保护知识的，不是用来限制知识的传播的，而是通过保护创造性智力劳动成果———知识产品，来保护创造知识的劳动的；知识产权属于私权但对公权有强烈的依存性，是人们基于创造知识的劳动对所产生的知识产品依法享有的专有权

"He looked around him on its books, its windows, its fireplace, and the tapestried comfort of the walls, with the same perception of strangeness that had haunted him throughout his walk from the forest-dell into the town, and thitherward."

他环顾四周，看着室内的书籍、窗子、壁炉、接着壁毯的赏心悦目的墙壁，但从林中谷地进城来一路纠缠着他的同样的奇异感觉依然存在。

"He looked around him on its books, its windows, its fireplace, and the tapestried comfort of the walls, with the same perception of strangeness that had haunt ed him throughout his walk from the forest-dell into the town, and thitherward."

他环顾四周，看着室内的书籍、窗子、壁炉、接着壁毯的赏心悦目的墙壁，但从林中谷地进城来一路纠缠着他的同样的奇异感觉依然存在。

He entered the accustomed room, and looked around him on its books, its windows, its fireplace, and the tapestried comfort of the walls, with the same perception of strangeness that had haunted him throughout his walk from the forest-dell into the town, and thitherward.

他走进熟悉的房间，环顾四周，看着室内的书籍、窗子、壁炉、接着壁毯的赏心悦目的墙壁，但从林中谷地进城来一路纠缠着他的同样的奇异感觉依然存在。

He entered the accustomed room, looked around him on its books, its windows, its fireplace, the tapestried comfort of the walls, with the same perception of strangeness that had haunted him throughout his walk from the forest-dell into the town, thitherward.

他走进熟悉的房间，环顾四周，看着室内的书籍、窗子、壁炉、接着壁毯的赏心悦目的墙壁，但从林中谷地进城来一路纠缠着他的同样的奇异感觉依然存在。

The tibiotarsus of hindlimbs of typical terrestrial birds with the characteristic accustomed to walk and run is the longest, and its tarsometatarsus is longer than the femur; while the tibiotarsus of hindlimbs of typical arboreal birds with the characteristic of perching, jumping is the longest, and its femur is longer than the tarsometatarsus; the contrast of length of femur and tarsometatarsus of raptores change between the two former types of birds because its life habit is intervenient of them.

习于地面行走、奔跑为特征的典型地栖鸟类，后肢骨骼中胫跗骨最长，其次跗跖骨长度大于股骨；而以树上栖息、跳跃为特征的典型树栖鸟类，后肢骨骼中胫跗骨最长，而股骨长度大于跗跖骨；猛禽类因生活习性介于前两类鸟类之间，故股骨与跗跖骨长度比较也是在二者之间变化的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷