数
- 与 数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this thesis, the virtual boundary integral equation is based on double layer potential with the virtual density to be determined on virtual boundary. Since this integral equation related to double layer potential only involves the computation of the normal derivative and second normal derivative of fundamental solution, the exponential integral function is not involved in it, so numerical computation for the exponential integral function is avoid.
本文则基于双层位势,引入虚拟矩密度函数来建立虚边界积分方程,并首先对时间变量进行解析积分,在虚、实边界上采用常单元和等额配点离散,该方程只涉及含基本解的法向导数及其二阶法向导数项的计算,对时间变量进行解析积分后,不会出现对指数积分函数的空间变量的积分计算。
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The number a is called a double root of the polynomial function f.
数a称为多项式丞数f的二重根。
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Coulomb failure stress changes produced by former earthquake on fault plane and slip direction of latter earthquake have been calculated. We found that the number of earthquake doublets with positive CFS change is more than that of negative CFS change.
计算了前面地震事件在后续地震断层面和滑动方向上产生的库仑破裂应力变化,发现正库仑破裂应力变化的"地震对"数多于负库仑破裂应力变化的"地震对"数。
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Drosera burmannii is a small, compact sundew normally spanning only 2 cm (0.79 in). It is one of the fastest trapping sundews as well, and its leaves can curl around an insect in only a few seconds, compared to the minutes or hours it takes other sundews to surround their prey.
宽叶毛是一个小小的,紧密的毛毡苔,全长通常只有2cm(0.79英尺),是具有最快的陷阱的毛毡苔之一,它的叶片可以在几秒内把昆虫卷起来,相较於其他毛毡苔,需要数分钟甚至数小时才能办到。
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Results There were 8 rodent species in Yuqing county. RatLus norvegicus was the dominant species among domestic rodents, with 83.97 percent; Apodemus agrariuswas the dominant species in rice field and dry farm land, with 95.16 percent.
结果: 余庆县家柄鼠和农田鼠种有8种,褐家鼠为家栖鼠优势种,占总捕鼠数的83.97%;黑线姬鼠为稻田、旱地耕作区优势种,占总捕鼠数的95.16%。
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The soret effect and Dufour effect on the convective diffusion of VOCs in indoor surroundings was specially investigated.
并采用数值方法研究了室内环境中同时存在温度梯度、湿度梯度和VOCs浓度梯度时的自然对流传热传质现象,着重分析了考虑交叉扩散效应时热瑞利数和浮力比数等对室内VOCs对流扩散的影响。
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When I visited Kota Belud earlier today, I was told that Sabah – like the Bajau, Dusun, Iranun and Chinese in Kota Belud – had been practising 1Malaysia for decades, with the various ethnic groups in Sabah long having a very easy, friendly and cosy relationships with each other, and their response to Najib's 1Malaysia is whether the Prime Minister had been sleeping all these decades.
当我今早到访古打毛律时被告知,在沙巴,如在古打毛律的巴夭人、杜顺人、伊拉嫩人及华人,早在数十年前已开始落实一个大马精神,沙巴各族群之间打成一片,相处得极好,他们对纳吉的一个大马回应是,首相在这数十年来是否在睡觉。
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A summary of three commonly used kinds of tidegenerating potential development has been made. Different from the theoretical model of the effect of solid earth tide on station displacements recommended by the IERS1996 and IERS2000, a spectrum method is developed, independent of almanac, at the submillimeter level using precise development of TGP.
测站位移的潮汐效应是通过潮汐参数Love数hnm和Shida数lnm来表征的,而且测站的潮汐位移几乎是由二阶引潮力位引起,三阶潮汐效应很小,在毫米精度上更高阶的潮汐影响完全可以忽略[1]。
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Laboratory experiments were carried out to study the survival and development of the Harmonia axyridis feeding on Chaito phorus popleti on high insect-resisitance hybrid poplar 741(Pb29) and medium insect-resisitance hybrid poplar 741(Pbl7).The API 741 poplar was used as control.The mortality and development during immature period,adult,baby mass.eclosion and sex ratio of H. axyridis were measured.The results showed that:to contrast The API 741, Chaito phorus popleti on Pbl7 and Pb29 has no significantly impacts on eclosion,pupation, ecdysis,mortality of immature period and pupa stage;Although every development stage of ladybeetles were not affected to ,the pupal duration of ladybeetles was lowered than the control;The body mass,eclosion and sex ratio have no significant difference.
通过利用节肢动物群落及各个亚群落的物种丰富度、个体数、均匀度和优势集中性对多样性指数进行通径分析,表明了高抗Pb29和CK节肢动物群落及各个亚群落多样性指数与均匀度和优势集中性的相关系数最高,与其物种个体数关系最为不密切:对各组分进行通径分析均表明的多样性提高是建立在降低优势集中性和增加均匀度指数的基础上的,而且以优势集中性的直接作用效果较为显著。
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Negative electret not only enhanced the growth of cells, but also enhanced the apoptosis of cell.
3正极性驻极体作用于3T3细胞24 h后,G1期内的细胞数增加,G2期和S期中的细胞数减少。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。