矩形波

We synthesize the beamlet source and beamlet records in the wavelet domain using both rectangle and Gaussian windows and then extrapolate the synthesized data with a Fourier finite-difference operator.We test the method using the standard Marmousi model.

我们在小波域中，分别应用矩形窗和Gaussian窗合成了小波束源和小波束记录，并基于傅立叶有限差分算子，对marmousi模型进行了叠前深度偏移试算。

A quasirectangle waveguide structure is designed using organicinorganic hybrid material to meet the needs of the fabrication of electrooptic switches.

为了满足制作电光开关的需要，采用有机无机杂化材料设计了一种准矩形的波导结构。

After maximum lifting of morphological Harr wavelet,the objects are detected by threshold method and connectivity analysis of eight adjacent regions.

对图像进行了形态Harr小波最大提升后，在一个分辨率低的高频子带中利用阈值和八邻域连通分析方法检测出目标，使用外接矩形与环面的交集来描述ROI，其他分辨率高频子带的ROI通过Mosaic放大得到。

Research on the Over critical and Overflow at Variable Conditions of Marine Steam Turbine;2. Strongly total domination edge critical graphs;3. This paper measures the critical energy of detonation of hydrocarbon fuel(butane,naphtha,pentene,hexene,JC5) and air mixtures using Bruceton method in the rectangular shock tube.

该文在矩形激波管内采用布鲁塞顿法测定了丁烷、石脑油、戊烯、己烯、JC5等碳氢燃料与空气混合物形成爆轰时所需的临界起爆能，并根据所测定的临界起爆能的大小，分析比较了这几种碳氢燃料的相对爆轰敏感度及相应的安全性能，最后讨论了分子量，分子中键的饱和度和分子结构等因素对碳氢燃料临界起爆能及相应的安全性能的影响。

This paper measures the critical energy of detonation of hydrocarbon fuel(butane,naphtha,pentene,hexene,JC5) and air mixtures using Bruceton method in the rectangular shock tube.

该文在矩形激波管内采用布鲁塞顿法测定了丁烷、石脑油、戊烯、己烯、JC5等碳氢燃料与空气混合物形成爆轰时所需的临界起爆能，并根据所测定的临界起爆能的大小，分析比较了这几种碳氢燃料的相对爆轰敏感度及相应的安全性能，最后讨论了分子量，分子中键的饱和度和分子结构等因素对碳氢燃料临界起爆能及相应的安全性能的影响。

This teehnology makes the pulmonary function test go well for children, especially for the children before school age, and also prorides a reliable basis for early diagnosis and early clinical treatment of respiratory diseases.In this paper, I will introduce the clinical applications of bronchiectasis test using impulse oscillometry for children.

脉冲振荡法(impulse oseillometry，10S)是近年来开展的一项肺功能检测，是以外部发生器产生矩形电磁脉冲，通过扩音器转变为各种频率的机械波作为测试源，叠加在被检者静息呼吸上，再通过计算机的复杂运算，可快速、精确得出呼吸系统总气道阻力、中心气道阻力、周围气道阻力和肺顺应性等各参数的数值。

Schematizing the southern Yellow sea as an constant water depth and semi-enclosed rectangular bay, the evolution trends of tidal amphidromic system of M2and variation features of coast tidal range are analyzed primary under the condition of 3 and 5 meter rise of sea level respectively.

将南黄海概化为一等深矩形海域，初步研究了在海平面上升3m 和 5m 条件下该海域旋转潮波系统的演化趋势，继而分析了沿岸潮差变化特征。

The effect of metallic pit prop on transmission characteristics in tunnel is studied.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。

A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。

A fork waveguide model is proposed and the mode matching and multi-mode network technique are used to analyze the transmission characteristics of rectangular tunnel with metallic pit prop.

针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题，提出用分叉波导模型并用模式匹配法和多模传榆理论分析传榆特性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。