粗糙

The challenge of this assignment is to shape and frame the raw material of experience and memory for a reading public.

这份作业的挑战是要为读者将粗糙的经验以及回忆的资料建构并框架起来。

Experiment: respectively measures the reaeration ability of the smooth overflow surface and roughened overflow surface(hemispheroidal surface and stepped surface), and analyses contrastively the effect and reason of reaeration improving after roughened modification.

曲线型溢流坝复氧室内模型试验：分别对光滑溢流面和糙化溢流面(粗糙溢流面及阶梯溢流面)的复氧能力进行了测试，对比分析了溢流面糙化后复氧增强的效果和原因。2。

This paper studies the test of the dry reaming technology by applying ultrasonic vibration to the reamer.

通过将超声波能量施于铰刀，使其以超声频振动进行干式铰孔的工艺方法，试验研究超声波激振干式铰孔对加工精度、表面粗糙度的影响规

The computation of sky radiance resulted from the earth's diffuse reflection is studied based on a hypothesis that a underlying surface is randomly rough. The paper gives an analysis of the method to calculate the reflectivity, average hemisphere reflectivity, and transmission in virtue of the reciprocity law from the earth's surface to the top of the atmosphere.

本文基于下垫面为朗伯粗糙表面的假设基础上，对下垫面对向下太阳辐射的漫反射作用引起天空亮度变化的计算方法进行了研究，分析了利用互易性原理计算大气反射率、半球平均反射率和透过率的方法。

In this paper, based on the reciprocity theorem, the light scattering from a spherical particle above a slightly rough dielectric surface is studied.

基于互易定理研究了光波入射时微粗糙面与其上方球形粒子复合模型的光散射。

The composite scattering between dielectric sea surface and a conducting plate above it is calculated by using Physical Optical method and reciprocity theorem. Meanwhile, the dependence of the plate size on the composite scattering field is considered. The Doppler spectrum and the chaotic characteristic for the time series of composite scattering field are analyzed. Finally, artificial neural networks and wavelet analysis are introduced into the study of the sea clutter to realize the purpose of target detection, the factors which affect the detection of the target are discussed and the solutions to these problems are given.

同时利用物理光学近似结合互异性原理计算了介质粗糙海面与其上方导体运动平板的复合散射，考虑了平板尺寸对复合散射场的影响，并对复合散射场时间序列进行了多普勒谱分析和混沌分析，最后将人工神经网络和小波分析引入到海杂波的分析当中，实现了海杂波中目标探测的功能并讨论了影响目标探测功能的因素以及解决这类问题的方法。

Considering coarse triangularmesh model is often seen, in order to increase the p recision of curvatures,combined with Loop subdivision algorithm, the curvature algorithm was further extended.

推导了一般三角形网格模型顶点的平均曲率、高斯曲率和主曲率的计算方法，考虑到经常遇到粗糙三角形网格模型，为提高其曲率计算方法的精度，结合Loop 细分曲面算法，进一步拓展了该曲率计算方法。

Based on cognition psychology and information entropy the author has proposed a simplifying algorithm that reduced the construction complexity degree.

2在粗糙集理论与挖掘算法的基础之上，研究了概念格的理论与知识表达方法，提出了具有完备性的分类知识的挖掘算法，构建了基于概念格的分类知识表达结构模型，并在认知心理学与信息熵的理论基础上，研究了降低概念格构造复杂度的简化算法。

The morphology of obtained deposits were analyzed by means of scanning electronic microscopy. Compared with nickel-cobalt deposits,nickel-cobalt-tungsten carbide composite deposits have refined grain size and increased surface roughness.

通过扫描电镜对镀层形貌进行分析，结果发现，与镍钴合金相比，由于碳化钨粒子的加入，复合镀层晶粒细化，表面粗糙度较大。

To analyze the effect of surface roughness on the journal bearing lubrication, three parameters such as amplitude, wavelength and duty cycle are used to specify characteristics of the regular transverse surface roughness.

为分析规则表面形貌对润滑效果的影响，采用粗糙峰幅值、波长和占空比三个参数描述规则条纹表面形貌的特征。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。