成对
- 与 成对 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Different secondary layers of fossil brachiopod shells have different preservation and the way by which the shells' primary isotope ratios be influenced by diagenesis: postdepositional alternation of δ〓O、δ〓C has no effect on the low-Mg calcite minerals of the shells, while it alters the whole shell's isotopic compositions by microcrack fillings, even with the well preserved shells.
1成岩后生作用对腕足化石壳体不同结构单元的改造方式及改造程度不同:成岩后生作用对保存较好的腕足化石壳体的改造是以微裂隙充填方式进行,而对低镁方解石本身并没有影响。
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This design is low stretch of 30,000 tons of high-strength type polyester production workshop after preliminary design, high low stretch of polyester staple fiber dosage is in the biggest species, it is PTA or dimethyl terephthalic acid and glycol as raw materials via esterification or the ester exchange reaction and condensation of terephthalic acid polymer fibre - together into glycol, this design USES Germany JiMa process, high scientific and technological content, is a kind of high strength, good elasticity, and heat resistance, good abrasion resistance, corrosion resistant polyester.
帮忙把涤纶论文绪论翻译成英语,要求不用翻译软件,可以用软件查单词本设计是"年产30000吨高强低伸型涤纶短纤维后加工生产车间初步工艺设计",高强低伸型涤纶短纤维是涤纶短纤维中用量最大的品种,它是以精对苯二甲酸或对苯二甲酸二甲酯和乙二醇为原料经酯化或酯交换和缩聚反应而制得的成纤高聚物——聚对苯二甲酸乙二醇酯,本设计采用德国吉玛工艺,科技含量较高,是一种强度高、弹性好、耐热性好、耐磨性好、耐腐蚀的涤纶短纤维。
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It is found that the change of threshold voltage value fits in exponential law with absorbed dose,which is caused by the effect of space charge and interface charge.
产生这种现象的原因是场效应管氧化物中的空间俘获电荷与吸收剂量近似成线性变化,对阈值电压变化和吸收剂量有近似线性的改变;而界面态对空间电荷有补偿作用,其对阈值电压的改变与吸收剂量有近似成二次方的关系。
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First, the typhoon flow field is decomposed into two parts: the maximum asymmetric vortex and irrotational environmental flow field. Then the maximum asymmetric vortex is also decomposed into two parts: the maximum symmetric vortex and β-gyres. Finally, typhoon Pearl(2006) is simulated by WRF model(weather research and forcasting model), and flow fields at various times at 500hPa...
首先,将台风的流场分解成最大的、不对称的涡旋流场和无旋流场;然后将不对称的涡旋流场分解成最大的对称涡旋和不对称的β涡旋对;最后,利用WRF(weather research and forcasting)模式(V2.1.2)模拟了200601号珍珠台风,并对各时次的500hPa风场用该方法进行分解,结果表明:该方法对台风的运动机理研究和实际的台风路径预测提供了有价值的信息。
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The effect of leptin on promoting myoblast proliferation and cell accumulation in the S+G2/M phase were inhibited by TNF-α.
脂肪细胞因子TNFα抑制leptin对猪骨骼肌成肌细胞增殖和增殖期S+G2/M阶段细胞积聚的促进作用;降低leptin对猪骨骼肌成肌细胞分化期间对CK活性和MyoG表达的抑制效应。
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Based on the array signal processing and the eigenstructure decomposition method, the signal subspace and the noise subspace are achieved by reconstructing and decomposing the data matrix collected by the array sensors. By using the orthogonal properties of the two subspaces, the information about the velocities and bearings of spatial moving targets can be exactly obtained.
本文提出一种超分辨的二维谱估计方法,它利用的是阵列处理技术,对天线接收数据进行本征分析,将信号数据张成一个空间并对其进行分解,根据正交原理分割成信号子空间和噪声子空间,构造出噪声本征矢量,利用信号子空间与噪声子空间的正交性,在空间谱上形成极值点,从而达到对方向和速度的二维高分辨率估计。
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We also present the test result of impulse response with the overthrust model.
继而,对岩丘模型,文中讨论了成像参数的选择、地震子波对成像精度的影响、并完成二维及三维叠前深度偏移的比较;对推覆体模型,文中进行了脉冲响应测试。
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In this paper, based on the comparison between CMOS and CCD image sensor and according to the principles of photometry and radiometry, the imaging range formula of CMOS image sensor in space-based system for space targets is derived with detail analysis, considering the metric of Signal-to-Noise Ratio and taking deep space as background.
在对CMOS和CCD传感器进行对比的基础上,从信噪比的角度出发,以深空作为背景,根据光度学和辐射度学的基本原理,对基于CMOS图像传感器的天基空间目标监测系统的成像距离进行了详细分析和公式推导,并以STAR-1000 CMOS图像传感器为例验证了理论模型和计算公式的正确性,最后对进一步提高CMOS图像传感器成像距离的方法进行了简要分析。
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Firstly, a signalized point is stuck on a moving object to be tested, a microphone array and two video cameras are arranged, and the video cameras are demarcated to obtain a projection matrix; sound pressure signals of a sound source in the moving object to be tested are obtained by the microphone in an array mode, the dynamic video of the moving object to be tested is obtained and disassembled into an image by the video cameras; the signalized point on the moving object to be tested is identified in the video image and the matched signalized point is treated with three-dimension reconstruction to obtain the spatial location of the moving object to be tested; the sound pressure signals are treated with beam forming treatment to obtain a sound field characteristic function scattergram of the moving object to be tested, the video image is treated with spatial coordinate superposition frame by frame and restored into a dynamic video image.
首先在被测运动物体粘贴标志点,布置传声器阵列和两台摄像机,对摄像机进行标定,得到投影矩阵;传声器阵列获取被测运动物体中声源的声压信号,摄像机获取被测运动物体的动态视频,将动态视频拆解成图像;在视频图像中识别出被测运动物体上的标志点,对匹配后的标志点进行三维重构,获取被测运动物体的空间位置;对声压信号进行波束成型处理,得到被测运动物体的声场特征函数分布图,将其视频图像进行逐帧空间坐标叠加,并还原成动态视频图像。
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By azo compound became chromophore monomer disperse red -19, and through Sulfonyl of the compound was synthesized by the C, and through 1HNMR its structure was characterized, the results show that the synthesis of compounds C of very high purity, synthetic polymers can meet at the request of the monomer, but also of the compound D, through 1HNMR its characterization, showed that high purity compounds D, is expected to be functional after the adoption of To all the excellent performance PEEK electro-optic polymer materials.
本文通过偶氮化合成了生色团单体分散红-19,并通过磺酰化反应合成得到了化合物C,并通过核磁共振氢谱对其结构进行了表征,结果表明,所合成的化合物C的纯度非常高,完全能满足聚合物合成时对单体的要求,同时也合成了化合物D,通过核磁共振氢谱对其结构表征,显示化合物D纯度很高,应有望通过后功能化合成出各种性能优良的聚醚醚酮电光高分子材料。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。