平方
- 与 平方 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Then,the great amount of operation of square and trigonometric function is replaced by little amount of operation of square and trigonometric function and great amount of arithmetic operation.
在菲涅尔全息图的计算中,用少量的三角函数、平方运算和大量的四则运算代替原来大量的三角函数和平方运算,减少了全息图的运算量。
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The results show that this kind of roughening elements can possess a wide range of roughness, and the hydraulic resistance decreases with the increase of space between roughness elements, but reduces slowly to a constant, and that flow enters into the turbulently rough zone when Reynolds number reaches about 3 500, in which the hydraulic resistance decreases with increase of relative submergence degree, reducing slowly to a constant too.
通过水槽试验对Y型加糙体阻力特性进行了深入研究。研究结果表明:其糙率具有一个较大的调整范围,且随着加糙间距的增加水力阻力减小,减小的幅度越来越小,最后基本不变;雷诺数在3 500左右水流进入阻力平方区,进入阻力平方区后,随着相对淹没度的增大水力阻力减小,最后达一定值。
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By the end of 2005, SiWu has made achievements of the seismic acquisitions of 154,200 kilometers in 2D and 4807.75 square kilometers in 3D, 110,000 square kilometers in gravitational, magnetic, and electrical surveying, over 900 promising regional structures and traps, over 500 wellsite recommendations and hundreds of exploration reports.
截至2005年年底,第四物探大队共完成二维地震15.42万剖面千米,三维地震4807.75平方千米,重、磁、电勘探11万平方千米,发现有价值局部构造和圈闭900余个,提供500余口井位建议书,提交了数百份勘探成果报告。
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By the end of 2005, SiWu has made achievements of the seismic data acquisitions of 154,200 kilometers in 2D and 4807.75 square kilometers in 3D, 110,000 square kilometers in gravitational, magnetic, and electrical surveying, over 900 promising regional structures and traps, over 500 wellsite recommendations and hundreds of exploration reports.
截至2005年年底,第四物探大队共完成二维地震15.42万剖面千米,三维地震4807.75平方千米,重、磁、电勘探11万平方千米,发现有价值局部构造和圈闭900余个,提供500余口井位建议书,提交了数百份勘探成果报告。
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By the end of 2005, the No.4 Brigade has made achievements of the seismic acquisitions of 154,200 kilometers in 2D and 4807.75 square kilometers in 3D, 110,000 square kilometers in gravitational, magnetic, and electrical surveying, over 900 promising regional structures and traps, over 500 wellsite recommendations and hundreds of exploration reports.
截至2005年年底,第四物探大队共完成二维地震15.42万剖面千米,三维地震4807.75平方千米,重、磁、电勘探11万平方千米,发现有价值局部构造和圈闭900余个,提供500余口井位建议书,提交了数百份勘探成果报告。
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The results show that the hydrophilicity of PLA film is improved by introduction amido: the contact angle decreases from 78° to 56° and the free energy increases from 42.7mJ/m^2 to 51.4mJ/m^2. Compared with the control, osteoblast spread out more filopodia after 3 d incubation on amidation surface, and it entered cell division phase more quickly, which indicated that the surface amidation could promote the cell's adhesion and proliferation on the PLA film.
结果表明,酰胺基的引入改善了PLA膜的表面亲水性,其表面水接触角由78°减少到56°,自由能由42.7mJ/平方公尺增大到51.4mJ/平方公尺;与对照组相比,成骨细胞在改性表面培养3d后有大量的丝状伪足伸出,并且较快地进入了细胞分裂期,表明PLA膜表面的酰胺化能够促进细胞的黏附和增殖。
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Results The UV-B treatment caused the declines of chlorophyll content, soluble protein content and water content of leaves, besides, dose-effect was existed. The decline of 30 μW/cm^2 treatment was bigger than that of 15 μW/cm^2 treatment. The influences of UV-B radiation on carotenoid content and anthocyanidin content were similar; the change trends were declined firstly then increased. The UV-B treatment with two doses restrained the electron transport of PSⅡ, particularly; the inhibitory effect was biggest after treated 2h, and then this effect was declined in 4, 6 and 8 h, so the dose-effect was existed. The UV-B radiation with two doses restricted photosynthetic rate and the inhibitory effect increased with the increase of treatment time. The high dose treatment caused huge damage to membrane system, while the result of low dose treatment was not obvious.
结果]UV-B处理导致叶绿素、可溶性蛋白含量以及含水量都降低,且存在剂量效应,30μW/平方公分处理的降幅大于15μW/平方公分;UV-B辐射处理对类胡萝卜素含量的影响与花青素相同,均表现为先下降后上升的趋势,2种剂量间差异不大;2种剂量的UV-B处理均抑制了PSⅡ的电子传递,尤其是处理2 h的抑制作用最大,4、6和8 h的抑制作用有所缓解,且存在剂量效应;2种剂量的UV-B辐射均抑制了叶片的光合速率,随着照射时间的延长抑制效应加大;高剂量UV-B处理对膜系统的损伤较大,低剂量UV-B处理结果不明显。
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Methods Rats were exposed to S band HPM which average power densities were respectively 2~90 mW/cm^2. HE staining, Toluidine blue staining and electron telescope were used to study the change of the structure of cortex, and high performance liquid chromatography was used to study the changes of 4 amino acids (glutaminic acid, asparagic acid, GABA and glycine) of cortex in 6 h and 1d after exposure to 10 and 50mW/cm^2 HPM.
采用2~90mW/平方公分S波段高功率微波辐照Wistar大鼠,通过苏素素-伊红染色、甲苯胺蓝染色和电镜观察大脑皮层的形态结构改变;采用高效液相色谱仪检测10和50mW/平方公分照后6h和ld大脑皮层中4种氨基酸(谷氨酸、天门冬氨酸、γ-氨基丁酸和甘氨酸)含量的变化。
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The effects of different management patterns on root system structure and biomass of Bambusa oldhami was studied. The results are as follows: for the extensively managed Bambusa oldhami stand, the dry weight, length, surface area and volume of roots were 317.61 kghm^(-2), 45 304.91 mhm^(-2), 98.65 m^2hm^(-2), and 0.0181 m^3hm^(-2) respectively.
对不同经营方式的绿竹林根系结构和生物量分布开展了研究,结果表明:在粗放经营的绿竹林内,竹根干质量总量为317.61 kghm^(-2),竹根长度总量为45304.91 mhm^(-2),竹根表面积总量为98.65平方公尺hm^(-2),竹根体积总量为0.0181立方公尺hm^(-2);在集约经营的绿竹林内,竹根干质量总量为1333.12 kghm^(-2),竹根长度总量为143338.46 mhm^(-2),竹根表面积总量为3089.15平方公尺hm^(-2),竹根体积总量为0.5831立方公尺hm^(-2)。
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Design Krylov subspace conjugate residual squared algorithm for nonsym-metric linear systems and the improved conjugate residual squared algorithm for distributed parallel computing based on biconjugate residual method algorithm, and give theoretical analysis and comparisons of algorithms for two algorithms.
基于BiCR算法设计了求解非对称线性方程组Krylov子空间平方共轭残差算法和适合分布式并行计算的改进的平方共轭残差算法,并对两种算法进行了理论分析和算法比较,串行和并行数值试验表明所提方法具有较好的收敛速度和并行性能。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。