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During the early growth stage of seedlings, basal stem diameter and paripinnate number were decreased with the increasing of shade, taproot length, root : shoot ratio, total dry weight and leaf area per seedling were maximal under 37.3% NS, specific leaf area was increased with the increasing of shade, but the relative growth rate was declined. Seedlings grew fastest under 0.6% NS, suggesting that nutrients stored in seeds played an important role at the early growth stage. The treatment of 37.3% NS was best for established seedlings in seedling height, basal stem diameter, paripinnate number, rachis length, the maximum sub-leaflet number of individual paripinnate, leaf area per seedling, relative growth rate and net assimilation rate. Light intensity was positively correlated to total dry weight, and negatively to specific leaf area. The maximum of SLA was observed under 15.5% NS.
生长早期的幼苗基径和复叶数随遮荫程度的增加而降低;主根长、根冠比、总干重和单株叶面积均以37.3% NS处理最大;比叶面积随遮荫程度的增加而增大,而相对生长率则降低;幼苗株高在0.6% NS下增长最快,表明种子中贮藏的营养物质对幼苗的早期生长可能具有重要作用。37.3% NS处理对定居后绒毛番龙眼幼苗的生长最有利,幼苗的株高、基径、复叶数、叶轴长、复叶最多小叶数、单株叶面积、相对生长率和净同化率均在37.3% NS处理下获得最大增长;幼苗总干重随光照强度的减弱而降低;比叶面积在15.5% NS处理时最大。
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The treatment of 37.3% NS was best for established seedlings in seedling height, basal stem diameter, paripinnate number, rachis length, the maximum sub-leaflet number of individual paripinnate, leaf area per seedling, relative growth rate and net assimilation rate.
生长早期的幼苗基径和复叶数随遮荫程度的增加而降低;主根长、根冠比、总干重和单株叶面积均以37.3%NS处理最大;比叶面积随遮荫程度的增加而增大,而相对生长率则降低;幼苗株高在0.6%NS下增长最快,表明种子中贮藏的营养物质对幼苗的早期生长可能具有重要作用。37.3%NS处理对定居后绒毛番龙眼幼苗的生长最有利,幼苗的株高、基径、复叶数、叶轴长、复叶最多小叶数、单株叶面积、相对生长率和净同化率均在37.3%NS处理下获得最大增长;幼苗总干重随光照强度的减弱而降低;比叶面积在15.5%NS处理时最大。
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He that seeketh victory over his nature, let him not set himself too great, nor too small tasks: for the first will make him dejected by often failings; and the second will make him a small proceeder , though by often prevailings .
记得初来时,我在小巷中穿论,本性则会变得不那么举重若轻了;而若是形成了习惯,本性就可被改变了。想要战胜本性,人必须给自己确立不好高骛远而又不徒托空言的目标。而还要注意的是,其一,不要为经常的失败而懊恼;其二,把它看作一件小事,即使它很难。
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But in practical operating, overvoltage caused by reignition of the vacuum switching device frequently appears, and it result in damage of the capacitor bank or the switchgear itself. Ensuring the switchgear against reignition and installing a protective device are two main approaches to avoid the phenomenon. In this paper, a study on overvoltage caused by reignition due to capacitor bank switching with the vacuum switching device and its preventive measures are carried out. The main work which has been done and researches are as follows: 1. The producing mechanism of overvoltage and its influence factor are analyzed. It is pointed out that single-phase reignition is the main reason for damage of the switchgear and two-phase reignition is the main reason for damage of the capacitor bank,so overvoltage of single-phase reignition and two-phase reignition are the emphases of prevention. 2. Analysis of the special working condition of the operating switch for capacitor bank is carried out. It indicates that the vacuum switching device is difficult to realize no-reignition under this operation condition, so it is more practical to adopt protection devices. 3. Analyses of protection effect of RC and MOA and their shortages are carried out. It shows that the two methods can only restrain effectively overvoltage caused by single-phase reignition, and they cannot protect the capacitor bank when reignition of two-phase occurs. 4. The operation principle of G-R damping device is analyzed and discussed emphatically.
本文针对真空开关投切电容器组时因重燃而产生的过电压及其防治措施进行了研究,所开展的主要工作和研究结果如下: 1、对过电压的产生机理及其影响因素进行了分析,指出单相重燃是导致开关设备损坏的主要原因,而两相重燃则是导致电容器组损坏的主要原因,因此单相重燃和两相重燃过电压是防护的重点; 2、对电容器组操作开关的特殊运行条件进行了分析,指出在这种运行条件真空开关难于实现不重燃,因此采用保护装置更具有现实意义; 3、对RC与MOA的保护效果和存在的不足进行了分析,指出这两种方法均只能有效抑制单相重燃过电压,而不能在发生两相重燃时保护电容器组; 4、重点对G-R阻尼装置的工作原理进行了分析和讨论,指出该装置接入后线路中将会出现两种频率的高频振荡,而电容器组上的过电压是由这两种振荡共同决定的; 5、根据对上述两种振荡的分析指出存在一个最佳电阻值使得过电压最低,并提出了电容器组电压和最佳电阻值的近似求解方法; 6、使用电气暂态分析软件MATLAB对G-R装置的保护效果进行了仿真计算,证实该装置确实可以有效抑制重燃时的电容器组过电压; 7、根据仿真与近似计算结果的偏差提出了近似计算的修正方法,经过修正后的过电压计算结果与仿真结果吻合较好; 8、对G-R装置中放电装置G与阻尼电阻R的要求进行了分析,指出采用编织电阻和真空间隙可能是最佳选择。
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According to review the history of western higher education, we find that middle age's university is content to the need of social specialty;renaissant university is content to the aspiration of humanism;in science education phase, university is content to pursue pure knowledge;in technical education phase, university is content to the development of society and country.
通过对西方高等教育的历史考察,我们发现:中世纪大学主要是满足当时的社会专业需求而存在;文艺复兴时期的大学为了人文主义的抱负而存在;科学教育阶段的大学是为纯知识的追求而存在;技术教育阶段的大学为社会和国家的发展而存在。
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Big and mean you to want a flower completely severalfold even the manpower material resources of a few times, and small and only itself is characteristic, open a source to think of region network to think blind pursuit is big and website plan avoid by all means is complete so!
大而全意味着你要花几倍甚至几十倍的人力物力,而小而专本身就是特色,所以启源思域网络认为网站策划切忌盲目追求大而全!【以下内容为IT者网站提供英文翻译,未经授权请勿转载
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So I went on the other side have in mind, if my heart no "master", in real life, unlikely they will ever stray far from the trap, often unable to extricate themselves Hun Hun ran; to catch those kinds of stylish and exhausted, and even Fanglangxinghai indulging in the sensual pleasures into the chaos of the universe, or stuporous and Xin-Zhi decadent, or materialistic and restless.
于是,我进而从另一面又想到,倘若我心无&主&,在现实生活中恐难远离迷途陷阱,往往会昏昏然不能自拔;为赶那形形色色的时髦而疲于奔命,甚至放浪形骸,沉溺于声色犬马之中而乱了乾坤,或为纸醉金迷而心志颓废,或为物欲横流而魂不守舍。
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In the case of granite, observation results indicate that the extending routes of active cracks are mainly intercrystalline, transcrystalline, inter-transcrystalline, and intracrystalline. When the strain rate is low, the long intercrystalline cracks are prevailing, and with increasing of the strain rate, the short transcrystalline and intracrystalline cracks gradually increase. The statistic results show that the active crack density increases with increasing of the strain rate, and the mean length of active cracks diminishes with increasing of the strain rate, that is, the induced damage in comminuted product increases with increasing of the strain rate. For the first time this dissertation integrates macroscopic results of comminution with active crack growth under impact loading. It elucidates why the dynamic comminution strength of mineral beds increases with increasing of the strain rate through the active crack extending, and analyzes the influence of structure and constitution of minerals on their damage under impact stress. It is authenticated that both the size distribution and the damage population of comminuted product can be characterized by the fractal.
为分析料层颗粒在冲击下的细观损伤效果,采用德国生产的ASM68K半自动图象分析仪对粉碎生成物中的损伤情形进行了观测,以花岗岩为例,观测结果表明花岗岩颗粒在冲击应力下的活化裂纹扩展路径主要表现为沿晶、穿晶、沿穿晶和晶内等形式,在低应变速率下,活化裂纹以沿晶裂纹较多,随着应变速率的提高,其它裂纹形式大量繁衍,统计结果表明活化裂纹密度随着应变速率的增大而增大,活化裂纹的平均长度随着应变速率的增大而减小,综合表现为颗粒的细观损伤程度随着应变速率的增大而增大;首次将应力作用下的活化裂纹演化特征与粉碎的宏观效果相联系,并就料层动态粉碎强度随应变速率增大而提高的现象从裂纹演化特征的角度进行了解释;分析了矿岩构造结构特性对损伤产生和分布的影响。
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It is observed that the evaluation of sensory quality decrease with storage time and increasing temperature. It shows from the reliability assessment between predicted and observed shelf-life that relative error is within ±10% calculated by the prediction model for the shelf-life of Trichiurus haumela.
结果表明,鲜带鱼的总菌落数、总挥发性盐基氮、鲜度指标随着贮藏时间的延长而增加,且随着贮藏温度的升高而增加迅速,其感官品质指标随着贮藏时间的延长而下降,且随着贮藏温度的升高而下降迅速。
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The roots of the differences of advocating cooperation and competition are traced back to the two nations' different characteristics in productivity and life style, while the differences are not unchangeably dual-opposition or one is bound to be replaced by another which is uphold by the environmentalist and the culture-gene determinism. On the contrary with the modernization and globalization of productivity and life style, the two cultures will leam from each other and finally the harmony world will come into being.
而&尚和&与&尚争&的价值取向的差异的根源则来自生产生活方式本身具有&尚和&与&尚争&的不同特征;而这种差异不是像二元对立文化模式论者强调的地理环境或&文化基因&那样不可改变而永远地对立,或者一方被另一方吃掉;而是必然地要随着生产生活方式的现代化和全球化的推进而互相取长补短,最终必然要走向世界大同。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。