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The leaf modules of different age tillers of grey green and yellow green ecotypes had the same regulation of allometry and biomass accumulation at the reproductive stage in the Songnen Plain. All quantity indices, such as biomass, length and width of leaf and regulation of biomass accumulation, were different between the two habitats of the same ecotype and between the two ecotypes at the same habitat. The results showed both ecotypes had adapted to their corresponding habitat and obviously had ecological plasticity.

在松嫩平原的繁殖期,灰绿型和黄绿型羊草不同龄级分蘖株叶构件具有相同的异速生长和生物量积累规律。2个生态型羊草叶构件的生物量、叶长、叶宽、生长和生物量积累规律等在相同生态型不同生境之间,相同生境不同生态型之间,以及不同龄级分蘖株之间的各个数量指标均有一些差异,但变化幅度不大,是2个生态型对其所在生境产生的相应适应性反应,具有明显的生态可塑性。

Based on information-theory, a lower bound on the size of the detector set is derived. Detector Generating algorithm is described. The performance of Artificial Immune Intrusion Detection System is better than the normal intrusion detection system based on knowledge engineering.

免疫原理在入侵检测领域的应用是一个刚刚兴起的研究,它的目的是使检测系统具有分布性、多样性、自适应性、自动应答和自我修复的特点,具有检测异常现象、利用不完备信息进行检测的能力,这是原有系统达不到的。

It change the normal method for "beginning control" and "goal control". With the development of living level, upholster is dispensability for indoor, the using of decorative material produce plenty of poisonous、baleful chemical substance. These substance make the air indoor into bad, and threaten the healthy in the door if these cumulate .What"s more it will reduce work efficiency. The past method of IAQA is subjective assessment or giving priority subjective assessment. But people will adapt to indoor environment due to settle in the door long-term, which it lead to incorrectness. So, we can"t only use subjective assessment for IAQ. In this article, the author bring forward the best and the reasonable assessing method ,which it is combining the subjective assessment to objective assessment.

随着生活水平的提高,室内装潢成为家居装饰不可缺少的部分,装饰材料的应用,会产生大量的有毒、有害化学物质,使得室内的空气质量变差,且长期累积会威胁室内人员的身体健康,导致工作效率低下,过去对室内空气品质的研究仅用主观评价方法或以主观评价为主对室内人员的主观感受做调查,但是由于室内人员对室内的环境具有适应性,从而造成评价的不准确,且过去对化学微污染物的影响没有定性的研究,因此,用该方法进行评价显然是不准确的,所以,本文提出用主观评价和客观评价想结合的评价方法对室内空气品质进行综合评价。

In general, the design work with traditional measures is done by hand, which cannot meet the needs of the technology and manufacture. So the author has developed a CAD hydraulic design software fit for lower specific speed axial flow runner, which is easily operated by users.The main research work of this paper is as follows:1 Analyzing the main reason of axial flow power station cannot work well under littler volume of flow in some season and putting forward an improving scheme, pointing out the characters of design under abnormal factors.2 Combined with the development of the industry in our country, the abnormal hydraulic design method of propeller turbine is discussed based on present literature, data and experiment results.3 Guided by the design method of software engineering, a suit of hydraulic design software of Lower Specific Speed Axial Flow Runner is programmed by the object-oriented programming language Visual Basic and a straightforward, concise and standard Windows human-computer dialogue interface is designed for the system, which makes the operation of the system very convenient.4 ActiveX Automation technology is adopted as the interface with AutoCAD and the hydraulic drawings are edited, modified by AutoCAD until hydraulic model drawings according with the demand of engineering practice are output.5 To resolve practice problem, the author has designed a lower specific speed axial flow runner for Duowa Power Station through an example.

论文的主要内容有:1 深入分析很多轴流定桨式水电站枯水季节小流量下不能发电的主要原因,提出减容改造方案,并指出超常规条件下的改造设计特点。2 结合国情及行业发展需要,参考现有资料、文献和前人的研究成果,进行低比转速轴流式转轮叶片水力设计方法的研究,对轴流式转轮叶片的奇点分布法水力设计进行了全面的探索,结合现代计算机技术,找到了一种针对特殊条件的轴流式转轮叶片水力设计方法。3 仔细比较多种AutoCAD二次开发工具后,结合本课题的特点,选用Visual Basic语言,综合应用软件工程的设计思想,进行低比转速轴流式转轮叶片水力设计软件的编制,为系统设计了直观、简洁和标准的Windows人机对话界面,便于用户操作;编程时在考虑到设计条件特殊性的同时,尽量做到程序的通用性,使之可用于解决同一类问题;另外,大部分程序还可移植到普通轴流式转轮叶片水力设计中,具有良好的适应性。4 利用ActiveX Automation技术与AutoCAD接口,对AutoCAD进行二次开发,在AutoCAD下实现水力图的自动生成和编辑,直至输出符合实际工程要求的木模图。5 通过算例,为多哇水电站设计了一个低比转速轴流定桨式转轮,解决其在枯水期小流量下不能发电的问题。

Nepenthes are some of the most forgiving CP plants as far as water quality is concerned, so don't think that your water isn't going to be acceptable to them.

猪笼草,是部分适应性好的食虫植物,就水质来说是不必要太担心的,所以不要想说你的水会不太适合他们,碰碰运气啦。

Nepenthes are some of the most forgiving CP plants as far as water quality is concerned, so don't think that your water isn't going to be acceptable to them. There's a good chance it will.

猪笼草,是部分适应性好的食虫植物,就水质来说是不必要太担心的,所以不要想说你的水会不太适合他们,碰碰运气啦。

Conscious that the human organism, normally capable of sustaining an atmospheric pressure of 19 tons, when elevated to a considerable altitude in the terrestrial atmosphere suffered with arithmetical progression of intensity, according as the line of demarcation between troposphere and stratosphere was approximated from nasal hemorrhage, impeded respiration and vertigo, when proposing this problem for solution, he had conjectured as a working hypothesis which could not be proved impossible that a more adaptable and differently anatomically constructed race of beings might subsist otherwise under Martian, Mercurial, Veneral, Jovian, Saturnian, Neptunian or Uranian sufficient and equivalent conditions, though an apogean humanity of beings created in varying forms with finite differences resulting similar to the whole and to one another would probably there as here remain inalterably and inalienably attached to vanities, to vanities of vanities and to all that is vanity.

人体组织通常能够抗得住十九吨的气压,可是一旦在地球的大气层里上升到相当的高度,越是接近对流层与平流层的境界线,鼻孔出血、吸呼困难以及眩晕,随着算术级数就越发严重起来。他晓得这一点,寻求解答时就设想出这样一个难以证明是不可能的行之有效的假定:倘若换个更富于适应性,解剖学上的构造也有所不同的种族,说不定就能在火星、水星、金星、木星、土星、海王星或天王星那充足而相同的条件下生存下来。然而那个远地点的人类种族,尽管在构造方面与地球上的人类有着一定限度的不同之处,整个来说彼此却有着相似的种种形态。他们恐怕也和地球上的人类一样,会不肯舍弃那一成不变、无法分割的属性,也就是对空虚,对空虚的空虚,一切都是空虚的执着。

In the sixth edition Darwin inserted a new chapter VII (renumbering the subsequent chapters) to respond to criticisms of earlier editions, including the objection that many features of organisms were not adaptive and could not have been produced by natural selection.

在第六版达尔文插入一个新的第七章以回应对先前版本的批评,包括认为生物体的许多特征不是适应性的因而不是通过自然选择产生的这样的反证。

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

Beginning with the investigation of the mathematics studying of the freshmen the author de signed a questionnaire, and found that the adaptability level of the freshmen's chemistry learning is not high enough, and that the majority of freshmen are unadaptable to their chemistry teacher's teaching method in universities.

本文从非化学专业大学新生学习化学的实际情况调查入手,通过自编的调查问卷,深入分析发现大学新生化学学习的总体适应性水平不高,在面对突如其来的学习内容差异和环境的转换,学生很难体会到化学教学的魅力,难以形成专业自豪感和学习的兴趣,普遍不适应大学化学教师的教学方式。

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推荐网络例句

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。