抛出

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

Comparing the improved Taylor formula and other projection angle formulas, the improved Taylor formula correctly reflected the decreasing process of the projection angle to the final value and could describe the projection angle more accurately.

利用数值模拟得到的结果比较了平板驱动几种不同的抛射角公式，改进的泰勒公式准确反映出了抛射角下降并趋于终态的规律，其对平板抛射角的描述更为准确。

All of the staff, industrious and sincere, produce the buffing material of the cloth ,the white, the sisal hemp ,the oil hemp and the buffing wax wheel, combing handcraft with machine, needle by needle, hammering by hammering, suited for Polishing Industry of hardware, stainless steel, light decoration, horologue, dishware, jewelry, sliding cart, motorcycle fittings.

工厂设在广东东大门--潮州市，公司及其所有员工秉乘了刻苦勤俭、诚信正直的精神，手工与机器结合，一针一线、一锤一敲地生产出磨光用的布轮、白布轮、剑麻轮、油麻轮、抛光腊等抛光材料，适用于五金，不锈钢，灯饰，钟表，餐具，首饰制品，滑板车，汽车摩托配件等抛光磨光行业。

It is also one of the largest and earliest sisal hemp mercha-nts in the city.All of the staff, industrious and sincere, produce the buffing material of the cloth ,the white, the sisal hemp ,the oil hemp and the buffing wax wheel, combing handcraft with machine, needle by needle, hammering by hammering, suited for Polishing Industry of hardware, stainless steel, light decoration, horologue, dishware, jewelry, sliding cart, motorcycle fittings.

工厂设在广东东大门--潮州市，公司及其所有员工秉乘了刻苦勤俭、诚信正直的精神，手工与机器结合，一针一线、一锤一敲地生产出磨光用的布轮、白布轮、剑麻轮、油麻轮、抛光腊等抛光材料，适用于五金，不锈钢，灯饰，钟表，餐具，首饰制品，滑板车，汽车摩托配件等抛光磨光行业。

CeO2 nanoparticles were prepared using cerium nitrate and hexamethylenetetramine as starting materials, and the prepared powders were collocated into polishing slurry for chemical mechanical polishing of GaAs wafer.

以硝酸铈和六亚甲基四胺为原料制备出不同粒径的纳米CeO2粉体颗粒，将纳米CeO2粉体配制成抛光液并用于砷化镓晶片的化学机械抛光。

The moving path and the instantaneous speed of the workpiece center point on the crank rocker arm were derived.

研究了曲柄摇杆机构中各杆长度对工件中心点运动轨迹及瞬时速度的影响规律，寻求出了符合设计条件的最优组合参数，并将其成功地用于立方氮化硼材料的精密抛光技术中，加工效率比传统的抛光方式提高50%，取得了良好的效果。

This software enable the user to simulate a projectile motion by changing physical parameters such as initial speed, elevation angle and vertical height of the object.

本软体可供学习者自己控制不同参数，譬如抛体的初速、抛射角及抛射点的高度，藉由电脑模拟出图象。

Experiments are performed to confirm the chemical etching method for defining the crystallographic orientation of silicon single crystals.

通过实验肯定了硅单晶的化学侵蚀定向方法，找出抛光液的最佳配比及抛光时间。

Finally,the variation of the polishing quality of ultrasmooth surfaces with polishing time is presented. It is concluded that the processing quality of ultra-smooth surfaces is affected by the change of polishing time.

在实验结果的基础上得出了抛光质量随抛光时间交替变化的基本规律，并根据加工经验总结出了超光滑表面加工过程中的注意事项和判断下盘时机的基本方法。

It is concluded that the processing quality of ultra-smooth surfaces is affected by the change of polishing time. Some techniques for the polishing process and the criteria to assess the polishing quality were summarized.

在实验结果的基础上得出了抛光质量随抛光时间交替变化的基本规律，并根据加工经验总结出了超光滑表面加工过程中的注意事项和判断下盘时机的基本方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。