- 更多网络例句与有尾的相关的网络例句 [注:此内容来源于网络,仅供参考]
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To all project practicality, the introduction is given to the operational characteristics, the methods for calculation and the researching actuality of the tail tunnels with sloping ceiling underground hydropower stations the Three Gorges. This paper has discussed in detail the characteristic method being the same with the compressive flow and the Priessmann solution being the same with the free-surface-pressure flow. And how to deal with boundary conditions has been expatiated. Also hydraulic transient process of tremendous load fluctuation in the tail tunnels with sloping ceiling has been numerical simulated and the Fortran program for numerical simulation has been given. The paper gain the maximal press for tail end of the shell, the maximal rising rate of rotational speed of generating set, the maximal vacuum degree for inlet of the tail tunnels and so on under 11 kinds conditions of tremendous load fluctuation. These conditions include the design conditions, the check conditions and the superposition conditions. Finally, the computing results have been analyzed and summarized. The end chapter is the general comment of the whole-length content and the describing of the intending view of researching.
本文以三峡右岸地下电站尾水洞设计为背景,从工程实际出发,阐述了变顶高尾水洞的工作特性、使用范围及其研究现状;详细论述了适用有压流的特征线法、适用明满交替流的普里斯曼解法等数学模型;边界条件的给定和明满交替流的计算方法;用Fonran语言编制了数值计算程序,对三峡右岸地下电站变顶高尾水洞的大波动工况进行了数值模拟,分别得出了在设计工况、校核工况和叠加工况下蜗壳末端最大压力上升值、机组最大转速上升值和尾水管进口最大真空度等重要参数;对数值计算结果进行了详细分析并得出了有价值的结论;最后展望了今后水电站变顶高尾水洞的研究方向。
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The results indicate that the tailrace tunnel has a good effect on air cooling and dehumidification in summer, and that the parameters of outlet air in the tailrace tunnel are mainly influenced by the temperature of tail water rather than by the parameters of outdoor air and the terminal air parame...
测试结果表明,夏季运行时无压尾水洞对引入空气有良好的降温除湿效果;在无压尾水洞足够长的条件下,尾水洞末端引风参数主要受尾水温度的影响,而受室外空气参数的影响很小,尾水洞出口空气接近对应尾水温度的饱和状态。
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Nowadays the single tube and single-unit hydroelectric station have been used widely and skillfully, but it is necessary for some large hydropower stations to use tailrace bifurcated tubes, just as Xiaolangdi, Xiangjiaba, Baishe project and so on. So it is significant to study the transients of long tailrace tunnel with tank or without tank.
对于尾水系统,单管单机的布置方式比较成熟,尾水岔管的布置方式目前在大型电站中用的较多,如小浪底、向家坝、百色等,因而研究其在有尾水调压井和无尾水调压井的情况下的过渡过程,很有实用意义。
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On comparing with the common type 4, there are 18 genes presenting change in the rest 21 types, most of them are tRNA genes, and gene replacement, gene increase and gene absence are frequently happened; on the contrary, protein genes are more steady, gene change is mostly of gene replacement. The genome size of Gymnophiona are all smaller than 18000 bps and most of them range from 15000 to 16000 bps, those of Urodela and Anura are bigger than 16000 bps, most of Urodela range from 16000 to 17000 bps, most of Anura range from 17000 to 18000 bps.
与类型4比较,其余21种线粒体基因组类型涉及基因变动的基因共有18个,其中变动比较多的是tRNA基因,移位、增多和缺失的发生频率都较大,而蛋白编码基因比较稳定,主要是移位。78种两栖动物中,蚓螈目的线粒体基因组均小于18000bps,多数在15000~16000bps;有尾目和无尾目均大于16000bps,其中有尾目多数在16000~17000bps,无尾目的多数在17000~18000bps。
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The results of The biological characteristics of Semanotus bifasciatus have showed: 1. The hole of Semanotus bifasciatus associated with a certain temperature.2.The main damages of Semanotus bifasciatus located oriental arborvitae tree trunks, while above 3m parts are not damaged. 3.The Mating numbers of Semanotus bifasciatus are not unique ,and the duration varied due to the different individuals, the average duration is 3.2 minutes . 4. when are flying , they are more sensitive to blue and green; while moved, they are more sensitive to black.
对双条杉天牛的生物学特性的研究结果表明:双条杉天牛出孔与温度有一定的相关性,温度过低,双条杉天牛停止出孔;对于树高7m以上的树,主要危害侧柏基部的1-3m的主干部分,3m以上基本不受害;双条杉天牛需要经过一段时间的抱合才能交尾,交配对象不专一,雌雄成虫均可以多次交尾,交尾时间长短不一,平均3.2min/次;飞行时对蓝色和绿色较为敏感,爬行时对黑色较为敏感。
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For the Batrachuperus tibetanus, the follicle cells are the main sites for e2, P and T, but the thecal cells are not shown to product steroid.
说明,在卵母细胞发育中,有尾两栖类和无尾两栖类性类固醇激素的作用有一些差异。
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The calling and copulation behaviour of Ancylis sativa Liu had a dielperiodicity.The female moths began to calling at the first day and increasedto 100% at the second day,then the percentage of calling decreasedgradually from the third day to the fifth day,only 16.7% of females showingcalling behaviour at the sixth day.The effect of environmentaltemperature on calling behaviour of Ancylis sativa Liu was studied duringadult life at 16℃,21℃,26℃ and 31℃.The result showed differenttemperature during adult life affected significantly the calling behaviour ofvirgin females.There was considerable variability in the calling patternsamong the different temperature groups,the higher the temperature was,thelater females called,the shorter the calling behaviour lasted.The copulationbehaviour of Ancylis sativa Liu can be divided into following squence:female calling,male responsing,male approaching female,hairpencil displayingand copulating.
枣粘虫求偶和交配行为研究结果表明,在光周期为14L:10D、温度为21℃下,越冬代枣粘虫雌蛾的求偶高峰期为黑暗期6.0-8.0小时,求偶活动以羽化后1-3天表现强烈,第二天求偶百分率高达100%,第4天开始,求偶百分率下降,到第6天仅为16.7%;环境温度对枣粘虫雌蛾的求偶活动有明显的影响,随着温度的下降,求偶高峰期明显提前,求偶高峰期的持续时间变长,在21、26、31℃下,求偶百分率接近或达到100%,在16℃下,仅为43%;枣粘虫的交配行为可分为雌蛾求偶、雄蛾反应、雄蛾接近雌蛾、打开味刷及交配成功等阶段;交配活动也以羽化后前3天表现强烈;第1、2代在黑暗周期中的交配高峰期比越冬代推后1-2.5小时;越冬代枣粘虫的交尾持续时间多为3-4小时,第1、2代比越冬代短;越冬代交尾前期多为2-3天,第1、2代多为1-2天,少数羽化当天便可交尾;雌雄成虫均有多次交尾习性,雄蛾最高交尾6次,平均3.3次,雌蛾最多交尾3次,平均1.5次,在田间自然条件下,大多数越冬代雌雄成虫只交尾1次,第1、2代交尾次数有所增高,第1、2代成虫交配率明显高于越冬代。
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Pedicel to 1 cm. Sepals narrowly triangular, 4-11 mm. Corolla yellow, tube 0.9-1.6 cm, puberulent on both sides or glabrous inside; lobes with a red basal spot inside, ovate, to 10 cm, abruptly narrowed into pendulous tails to 1 mm wide; corona lobes 10, greenish yellow, triangular or awl-shaped, 0.9-3 mm. Anthers included, connective tail to 0.6 mm. Ovary glabrous.
在里面0.9-1.6厘米,被微柔毛的两面或无毛的1 厘米萼片狭三角形,4-11毫米花冠黄,管的Pedicel;裂片具红色基部斑点在里面,卵形,令10厘米的是,突然缩小进下垂有尾给毫米宽;副花冠裂片10,黄绿色,锥形的三角形的或,0.9-3毫米花药包括,给子房无毛0.6毫米有尾的药隔。
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The origin and evolution of Hynobiidae have been one of the research highlights of evolutionists.
小鲵科是有尾目中最原始的一个类群,在有尾类研究中处于重要地位。
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The amphibians have legs and tails are salamanders and water salamander, most of them about 12 cm long, the largest up to 170 cm.
有腿有尾的两栖动物是蝾螈和水螈,它们多数约12厘米长,最大的长达170厘米。
- 更多网络解释与有尾的相关的网络解释 [注:此内容来源于网络,仅供参考]
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caudate:有尾的
caudal 尾部 | caudate 有尾的 | caudate nucleus 尾状核
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caudate:有尾的;尾状的
\\"尾韧带;肝肾韧带\\",\\"caudata ligament; hepato-renal ligament\\" | \\"有尾的;尾状的\\",\\"caudate\\" | \\"尾叶\\",\\"caudate lobe\\"
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caudate lobe:尾叶
\\"有尾的;尾状的\\",\\"caudate\\" | \\"尾叶\\",\\"caudate lobe\\" | \\"尾巢;尾核\\",\\"caudate nucleus; nucleus caudatus\\"
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tailed:有...尾的
tailcone /尾部整流锥/ | tailed /有...尾的/ | tailer /尾随者/
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tailed:(花药)有尾的
(花药)有尾的 tailed | 葵叶兰属(兰科) Tainia | 葵叶兰 Tainia cordifolia Hook.f.
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caudated:有尾的
caudate 有尾的 | caudated 有尾的 | caudex 草本植物主轴
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caudated:有尾的/有尾状附属物的
caudate /有尾的/有尾状附属物的/ | caudated /有尾的/有尾状附属物的/ | caudicle /花粉块柄/
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caudated:有尾的; 有尾状附属物的 (形)
caudate 有尾的; 有尾状附属物的 (形) | caudated 有尾的; 有尾状附属物的 (形) | caudillo 元首; 领袖 (名)
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cercal:有...尾的
ceratotheca 触角鞘(蛹) | ceratotrichia 角质鳍条 | -cercal 有...尾的
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crinite:有球发的/有发状尾的/有长软毛的
cringle /索眼/索圈/ | crinite /有球发的/有发状尾的/有长软毛的/ | crinkle /皱/缩/波纹/使皱/使缩/起皱/卷曲/