查询词典 diffuse symmetrical scleroderma

As for the inadequate contrast of infrared thermal imaging, as S curve mapping function is proposed to enhance target objectives and in the meantime suppress background clutters, which has the same range of domain with a variable interval and a non-symmetrical inflection point.

针对红外热成像对比度不足的问题，提出了一种S曲线映射函数，该函数具有定义域与值域区间一致、拐点非对称的特点，在目标图像增强的同时拟制了杂波背景。

The second milestone was the development of bilateral symmetry ( two halves of the body mirror each other ) with an identifiable head , in contrast to radial symmetry ( symmetrical in a ray pattern from the center ), for example , jellyfish .

第二个重要事件是动物身体进化成两侧对称，并出现明显的头部组织。当然也有例外，例如海蜇这种生物就是径向对称（即对称点在身体中心，呈放射对称）。

According to the reactive characteristics of the distributed generation and the shortcomings of the compensation system for static var compensator, based on the instantanous reactive theory and symmetrical component method, a real-time method for calculating the value of reactive power of the system is presented.

根据分布式发电的无功特点及现在SVC补偿系统的不足，利用瞬时无功理论和对称分量法，提出一种实时求取电力系统无功功率的方法。

With complex analytical analysis for B, the fixed points of B at real axis and C-plane are found. It is proved that zero is the only attract fixed point and the iteration of B on the complex plane is symmetrical. And the domains of the constringency and the divergence of B are given.

通过对B的复解析分析，得出了B在实轴和复平面上不动点的性质与求解方法，证明了0点为唯一的吸引不动点；说明了B在复平面上迭代的对称性，求出了函数迭代在整数点处的敛散区域。

Loci are symmetrical about the real axis since complex open-loop poles and zeros occur in conjugate pairs.

根轨迹关于实轴对称，因为复开环极点和零点是以共轭对出现的。

TE mode diffraction characteristics of surface-relief grating having different symmetrical profiles (rectangular, sinusoidal, triangle, trapezoidal profile) are calculated with rigorous second order vector couple-wave theory, the law of diffraction efficiency as a function of grating groove depth are analyzed: in a specific condition, diffraction efficiency might be close to 100%.

本论文采用严格的二阶矢量耦合波理论计算了矩形、正弦、三角形、梯形等对称面形蚀刻光栅的TE模偏振的衍射特性，分析了光栅的衍射效率随着沟槽深度变化规律。

Assuare fuel tank regular to draw thick stick ring first symmetrical crooked one, have good crafts, not only can improve and make a precision and save the raw materials but also simplify the crooked craft course and mold design greatly .

保油箱固定拉杠环是一个对称弯曲件，具有良好的工艺性，不仅可以提高制件精度和节省原材料，而且大大简化弯曲工艺过程和模具设计。

Don't forget that these effects are absolutely symmetrical as between frames of reference in uniform relative motion.

不要忘记的是，在相对匀速运动系统中，这两种效应是完全对称的。

2D transient model for rapid laser remelt;2. A two-dimensional symmetrical transient model applicable to cold-start emission applications was integrated, which was solved by the finite volume method.

描述了三效催化器的流动、传热传质和异相催化过程，分析了催化器的径向热导率的修正方法，比较了尾气分别作为双组分和多组分混合物时对其组分扩散系数的影响，集成了可用于模拟三效催化器的冷起动性能和暖机性能的二维轴对称瞬态模型，模型采用有限容积法求解。

Numerical Simulation and Experimental Investigation on A Thermoacoustic Engine with Tapered Resonance Tube A symmetrical standing-wave thermoacoustic engine with tapered resonance tube has been numerically simulated with liner thermoacoustics. The simulation shows that using tapered resonance tube in thermoacoustic engine could decrease the velocity amplitude and lower the total acoustic power loss in the resonance tube. The experimental results indicate that the harmonic was suppressed effectively by using the tapered resonance tube, and the pressure ratio was improved.

采用锥形谐振管的热声发动机的数值模拟和实验研究利用线性热声理论，对一台采用锥形谐振管的驻波型热声发动机进行了数值模拟，发现采用锥形谐振管可有效降低工质气体的速度振幅，进而减小在谐振管中声功率的损失；与一台在相同频率下工作的采用等直径圆柱谐振管的驻波型热声发动机进行了实验对比，结果表明，在使用锥形管作为谐振管的热声发动机系统中，谐振管中的非线性效应得到了明显的抑制，热声发动机在基频模式下稳定运行，压比增大而加热温度降低。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了