解决了

Double channel bandpass sampling method for wide band IF signal is presented to settle the problem of blind zone,which exchanges one more sampling channel for simplification of clock circuit and band pass filter.As a practical reconnaissance receiver, real-time processing performance must be considered.Digital channelizing method lays the base of parallel processing by multi DSP chips and discarding of the redundant data resulting from double channel bandpass sampling.

针对带通采样存在着频率覆盖盲区的问题，提出了宽带中频信号双通道带通采样的方法，通过增加一个采样通道既解决了传统处理盲区方法中设计复杂采样时钟电路、高矩形系数滤波器的困难，还缓解了后续DSP处理压力。

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

In the paper, the math model of the fitting machining benchmark curve of stone slice has been given, which used on the handrail of eddied ladder ,and circular helix has been used to be a fitting curve.

本文给出了旋转扶梯石材贴片的加工基准曲线拟合的数学模型，以空间螺旋线作为拟合曲线，为石材数控线切割机提供了理论基础，解决了石材加工行业中的实际问题。

In the paper, the math model of the fitting machining benchmark curve of stone slice has been given, which used on the handrail of eddied ladder , and circular helix has been used to bi a fitting curve, the general control machining linear slicer of stone, and has resolved the practical question on the machining of stone.

本文给出了旋转扶梯扶手石材贴片的加工基准曲线拟合的数学模型，以空间螺旋线作为拟合线，并给出用c语言编写的通用处理程序，为石材数控线切割机提供了理论基础，解决了石材加工行业中的实际问题。

For ensuring raw coal yield and safety production,designs the perforated strainer of coalhole,solves the problem of expanding coalhole and guarantees the safety of operating personnel in surrounding coalhole.

牛建科，刘茂，矿井煤库篦子的设计为了保障西曲矿的原煤产量与安全生产，自行设计了煤库篦子，解决了膨煤库问题，保证了煤库周围作业人员的人身安全。

Besides, as to inpainting problem in wavelet domain, we introduce a new iterative model. In this model low frequency and high frequency will carry on processing separately, enormous speed up the image repair convergence rate, and even if as high as 90% wavelet coefficient have been lost, this model will also be able to have the very good repair effect. In the old model, to compute the curvature we have to transform the coefficients to the pixel domain, and then transform back to the coefficient domain for several times and this method can solve this problem and speed up the iterative convergence.

其次针对小波域中图像修复的问题，本文提出了一种新的小波域图像修复模型，该模型根据小波变换后系数相关性的特点，将低频和高频分别进行处理，极大的加快了图像修复的收敛速度，并且即使丢失高达90%的小波系数，该模型也会有很好的修复效果，有效的解决了传统的TV- Wavelet模型在计算图像的平均曲率WCURV时，需要反复进行小波分解与重构的计算，迭代速度慢的问题。

Based on theoretical and experimental analysis, the problem of shape coefficient measurement is solved through conducting granule settling experiment in virtue of the replacement of the equivalent diameter of equal volume by the equivalent diameter of equal sedimentation velocity.

基于理论和试验分析，用颗粒的等沉降速度当量直径取代了等体积当量直径，进而利用沉降试验解决了颗粒的形状系数测定问题，并通过携砂试验得到了埕北地区东营组油藏砂粒的最小携砂速度计算公式。

At present it is very difficult to predict all the RNA secondary structures. This paper describes RNA secondary structure prediction methods from 1970\' to this day in a systematic way some. Tracing back and following the tracks of prediction methods the author made a summary of RNA research progress and situation while a enumeration problem of RNA secondary structure is studied with the method of combinatorial enumeration.

目前所有有关RNA二级结构的预测算法要预测出所有序列的二级结构仍然很困难，本文系统介绍了从上世纪70年代以来发展至今的各类RNA二级结构预测算法，从对RNA结构预测方法的追溯和跟踪，对当今RNA研究的进展和形势做了一个总结，并且应用组合计数的技巧解决了一类RNA二级结构的计数问题。

However, this polynomial regression model suffered from thecolor metameric problem. Herewith, to minimize the metamerism, a model was developed based on the principal component analysis and back-propagation artificial neural network for scanner spectral characterization, which could reconstruct more accurate spectrum in comparison with the related international experimental results.

但是，扫描仪的多项式回归色度特征化模型存在同色异谱问题，因此本文提出了基于主元分析法和神经网络技术实现扫描仪颜色光谱特征化的算法模型，解决了同色异谱的问题，并且获得了比国际上同类研究更高的图像光谱重构精度。

Confidence coefficient was generated by the node based on the data sensed, and represented the authenticity and importance of the data. A backoff algorithm and a transmission filter based on the confidence coefficient were designed also.

由于置信因子由传感器节点根据所感知的数据产生，反映了数据的真实性和重要性，由于设计了一种基于置信因子的发送退避策略和传输过滤器，解决了保证重要数据的优先信道访问权和减少冗余数据传输量的问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。