1、

The aerodynamic/ stealthy integrated design is aim to obtain the maximum lift to drag ratio under constraints of stealthy performance through the adjustment of local shape de-sign variables. The task of the structure optimization is to minimize the structural weight by adjusting the size of structural components.

气动/隐身一体化设计的任务是对局部外形设计变量进行优化,在满足隐身性能前提下,使升阻比最大;结构优化的任务是对结构尺寸进行优化,使结构重量最轻。

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2、

Adjustment of axial pressure ratio in designing frame structural systems with special-shape column

异型柱框架体系设计中轴压比的调整

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3、

Magnesium alloy has a high ratio of stiffness, good thermal conductivity and electromagnetic shielding. As a kind of structural materials, it has great potential applications in aviation and automotive industry currently.

镁合金具有较高的比刚度、导热性及良好的电磁屏蔽性,是目前在航空和汽车工业领域具有巨大潜在应用的结构材料之一。

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4、

Through fitting the experimental data about the A conversion dependence of structural units, the reactivity ratio of groups for different units was obtained.

通过拟合在不同A官能团转化率下结构单元比率的实验数据,我们成功得到该聚合体系不同结构单元的反应活性比。

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6、

As excellent light-weight structural materials, Mg alloys have been widely applied in the aerospace, transports and electronics mainly due to their low densities and highest strength-to-weight ratio.

作为优质的轻质结构材料,镁合金密度低、比强度高,在航空航天、运输工具、电子器材等方面得到了广泛运用。

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7、

What's more, with maximum speed ratio, minimum speed ratio of transmission system and speed ratio of reverse gear having been calculated, design method of structural parameters has been brought out.

对传动系统的最大速比、最小速比和倒档速比进行了计算分析,提出了回流式无级自动变速传动系统的结构参数设计方法。

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8、

For seeking the structural parameters of biggest complete bandgap and the change regularity of the bandgap, the fill ratio, dielectric constant ratio of inner-scatters and outside radius of dielectric ring are changed.

改变其填充率,同时改变介电常数比,以寻找最大完全带隙的结构参数,研究其完全带隙变化规律。

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9、

The overall level of structural asset-liablity ratio of financing of the biopharmaceuticals listed company of our country is on the low side.

我国生物制药上市公司存在着融资结构资产负债率总体水平偏低、股权融资偏好的特点。

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10、

To enhance the signal to noise ratio ( SNR) of fundamental ultrasonic echo signals for ultrasonic nondestructive testing ( UNDT) and ultrasonic nondestructive evaluation ( UNDE), an improved technique to suppress structural noises of ultrasonic signals was presented.

为了提高超声无损检测(UNDT)与无损评价(UNDE)基础数据的信噪比(SNR),提出了一种基于神经网络模式识别理论的小波域超声信号消噪技术。

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11、

The mainstream analysis of merger is traditional structural analysis which concentrates on market share and market concentration ratio.

传统上并购的主流分析方法是以市场份额和市场集中度为基础的结构分析方法。

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12、

So the model of dynamic assessment is structural basic frequency and crack characteristic-rigidity-nominal ratio of reinforcement-resistance to bending of single beam.

综上所述,本文建立的动力法评估模型为:结构基频和裂缝特征→刚度→名义配筋率→单梁抗弯能力。

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13、

Structural Design of High Aspect Ratio Composite Material Wing

大展弦比复合材料机翼结构设计研究

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14、

Research of High Aspect Ratio Straight Wing Structural Layout Based on Bionics

基于仿生的大展弦比直机翼结构布局形式研究

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15、

Matching through propagation makes use of the structural similarities of stereo triplet images in pyramidal graphs of BLI's, whereas the overall examination and verification of matching results is done by a comparison of the propagation success ratio.

传播匹配利用立体图像组在二值边界图像金字塔图中的结构相似性,而整个匹配结果的考察与认定是通过传播率的比较实现的。

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16、

By multivariate linear regression analysis method, the correlation of structural parameters was obtained from the basic property data ( H/ C atomic ratio, molecular weight, density) of residues and their fractions under ultra-critical condition.

利用减压渣油及其超临界流体萃取分馏馏分的基本性质数据(H/C原子比、分子量、密度),由多元线性回归分析法得到了结构参数的关联式。

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17、

The article analyzes the basic operating principle of F-P fiber-optic sensor, carries out short-term monitoring on structural strain behind abutment with the sensor, contrasts it's results with monitoring results of vibrating wire indicator, which shows that F-P fiber-optic sensor has higher success ratio and reliability.

分析了F-P光纤传感器的基本工作原理,利用F-P光纤传感器对桥台后结构应变进行了短期监测,并与钢弦应变计的监测结果进行了对比,分析表明:F-P光纤传感器成活率高,可信性高。

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18、

Also, spin rate coupling with structural damping ratio and other structural parameters have a significant influence in aeroelastic dynamic instability for spinning rocket.

旋转速率与结构阻尼及其他结构参数对气动弹性动态稳定性影响也比较显著。

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19、

by aid of structural damp theory, the integral damping ratio of the composite structures which include two different materials are derived according to energy conservation principle.

从结构阻尼理论出发,根据能量守恒原理,推导了由钢筋混凝土和钢结构组成的组合高耸结构的整体阻尼比。

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20、

so yes, i don't know the shape or formula, but there will be a global standard for funding liquidity there will be a stress liquidity, a long-term structural liquidity ratio.

是的,我不知道其形式或方案,但会有一个提供流动性的全球标准会有一个压力流动性,一个长期结构性流动性比率。

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