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The calculation result indicates that the construction method of the connecting tunnels is reasonable, and it also has a guidance function on tunnels construction and the affirmance of stratum reinforcement region.
得出过站区隧道施工引起的地层沉降和塑性区分布,数值计算结果表明过站区施工方案是合理可行的,计算结论为地层加固范围提供了依据,对过站区隧道施工有指导作用。
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The average zero-crossing frequency of zero crossing detector is divided, the former generation is evaluated, the characteristic of Dopper frequency tracking loop in SPA-Ⅱ system is summarized by comparison between the two systems.
本文还对过零截点器的平均过零频率进行了推导,由此对处理机-Ⅱ型的前一代系统作了估价,在此基础上,通过比较,总结了处理机-Ⅱ型系统多卜勒频率跟踪环的特点。
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In this character analysis part, another important relationship of coordinated control parameter and coordinated control structure is depicted in detail followed by an entire control problem describe. And the analysis results show that the nature of control subsystem partition problem is to find the oversaturation related signal groups in the network.
在过饱和交通特性分析的最后部分详细阐述了协调层控制中的控制参数与控制结构的关系,以此为基点,揭示了过饱和状态下控制小区的划分本质是寻找路网中与过饱和路段相关的信号灯组的关系问题,并对过饱和控制问题进行了完整的描述。
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Explicitly bringing out that other complicities bear no criminal liability for their excessive perpetration is a limited conclusion in the perspective of crime. If some specific requirements are met, other complicity should bear the liability for their excessive perpetration, and their nonfeasance can contribute complicity with their excessive perpetration.
明确提出通论中其他同案人对过限行为不负刑事责任的观点是站在作为犯罪角度得出的局限性结论,如果满足一定的条件,其他同案人对过限行为也应承担责任,而且其不作为可以和过限行为构成共同犯罪。
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It will be helpful for the understanding of a complete process of the petrogenesis and evolution of pegmatites, the impact of voltiles (including H〓O, F, B, P) on the physical prorerties of peraluminous magmatic system, and the fractionation of REE and incompatible elements in the system.
对上述问题的研究和探讨,将有助于了解伟晶岩形成和演化的全过程,有助于了解挥发分对过铝质岩浆体系物理性质以及对REE和其它微量元素地球化学行为影响,这对于理解过铝质岩浆体系成岩、成矿作用过程具有重大的理论和实际意义。
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It is found that the fouling rate is lowered during subcooled fow boiling by carrying gas injection, and the influence of carrying gas injection on fouling of convective heat transfer is more obvious than that of subcooled flow boiling; morphology of CaCO〓 crystallization fouling exhibits self-similarity and the fractal dimensions of CaCO〓 crystallization fouling are determined from the gray scale distribution of the SEM images by box-dimension method. The value of the crystallization fouling surface fractal dimensions reveals the complexity of the surface, and can be used as an import parameter for the investigation of influence of carrying gas injection on scale formation.
实验发现:引入载气,过冷流动沸腾结垢速率降低,但引入载气对过冷流动沸腾结垢速率的影响要弱于对对流传热结垢速率的影响;CaCO〓结晶垢具有统计自相似性,即分形特征;用盒子维法测定了CaCO〓结晶垢的分维值,分维值的大小反映了换热面上生成的结晶垢表面复杂程度,可用于描述引入载气对污垢的形成作用。
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The current theory and application of Al-Si alloy mainly focus on the study of hypoeutectic and eutectic, therefore we systematically analyzed the modification process of hypereutectic Al-Si alloy based on the methods and results of predecessors. Several factors including the modification temperature, the content of modifier, the available holding time, the times of repeat melting , the casting temperature and the speed for cooling have been studied in order to understand its effects to the composition, function and performances of primary silicon and eutectic silicon.
中文摘要本文针对目前Al-Si合金相关应用和理论的研究多集中于亚共晶和共晶合金的情况,在前人的研究成果和研究方法的基础上,对过共晶Al-Si合金变质处理进行了较为系统的分析,研究了变质剂的成分配比、变质温度、变质剂的加入量、变质后的静置时间、浇注温度及冷却速度等因素对过共晶铝硅合金中初晶硅和共晶硅的大小、形状、数量和分布的影响。
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The current theory and application of Al-Si alloy mainly focus on the study of hypoeutectic and eutectic, therefore we systematically analyzed the modification process of hypereutectic Al-Si alloy based on the methods and results of predecessors. Several factors including the modification temperature, the content of modifier, the available holding time, the times of repeat melting , the casting temperature and the speed for cooling have been studied in order to understand its effects to the composition, function and performances of primary silicon and eutectic silicon.
本文针对目前Al-Si合金相关应用和理论的研究多集中于亚共晶和共晶合金的情况,在前人的研究成果和研究方法的基础上,对过共晶Al-Si合金变质处理进行了较为系统的分析,研究了变质剂的成分配比、变质温度、变质剂的加入量、变质后的静置时间、浇注温度及冷却速度等因素对过共晶铝硅合金中初晶硅和共晶硅的大小、形状、数量和分布的影响。
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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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In the paper,vacuum circuit breaker switchingtransformers process is simulated with Saber software and parameters are analyzed Theresults indicate that overvoltage peak value of switching no load transformers is not muchhigh,especially for switching load transformers.Yet,reignition overvoltage might doharm to transformer coils by cumulative effects for its surge steepness.The measures liesin setting parallel connection capacitance in practice working.
本文利用Saber仿真软件对真空断路器切除变压器的一个完整过程进行了仿真计算,并详细分析了各种参数对过电压的影响,结果表明,尽管实际中切除空载变压器过电压的幅值并不是很高,特别是带负载变压器的情况,但重燃过电压的陡度较大,对变压器绕组的纵绝缘有累积作用,在实际工作中应以并联电容为基础的限压装置。
- 更多网络解释与对过相关的网络解释 [注:此内容来源于网络,仅供参考]
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across from:在......对过
according to 根据......;按照 | across from 在......对过 | add ... to ... 把......加到......上
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about anyone:对谁都没有过
I never felt this way before...|这种感觉我从来没有过... | about anyone.|对谁都没有过 | So why don't you kiss me...|那还不吻我...
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Yes, she did, didn't she:是的,她说过,对吗
She said yes.|她说是的. | Yes, she did, didn't she?|是的,她说过,对吗? | - Yes, she did. - Yeah.|是的,她说过. 是的.
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gook:对韩国人
对过oppositeacrosstheway | 对韩国人gook | 对号countermark
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who hasn't:你知道 我看过你的商业广告 对吗? 我的意思是 谁没看过呢
Oh, my god, you're good. You're r... | You know, i've seen your commercials, right? I mean, who hasn't?|你知道 我看过你的商业广告 对吗? 我的意思是 谁没看过呢? | I always thought you were some headline-...
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on the other side of sth:在...对面;在...对过
Where's the nearest bridge across the river? 过河最近的桥在哪儿? | on the other side of sth 在...对面;在...对过 | There's a bank right across the street. 街对面就有一家银行.
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overcapitalize:对...之资本估价过高
对...增压supercharge | 对...之资本估价过高overcapitalize | 对...作拆卸检修field-strip
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overrate:过定额过量率逾限率对...估计过高
overrate 过定额过量率 | overrate 过定额过量率逾限率对...估计过高 | overregulate 使...受到过调节
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underrate:对...估计过低,过低评价
grasp: v.1.抓住,握紧 2.理解,领会 | underrate:对...估计过低,过低评价 | reassess: v.对...再估价,再确定...的金额
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Yeah, pretested:对,预先测试过了
you know, pretested."|你知道,已经预先测试过了 | Yeah, pretested.|对,预先测试过了 | And, I thought... I actually thought about that.|我想... 我实际上那么想过