Based on the machining principle analysis of the nature ruled surfaces, the technologies of NC programming for intricate nature ruled surfaces by wire-EDM were studied, including the profile marking standard, the algorithm of seeking corresponding points, equal-error synchro-linear approximation of profiles and the method to calculate the maximum inclining angle of ruling.
基于对直纹面加工原理的分析 ,研究了复杂直纹面电火花线切割加工数控编程的相关技术 :轨迹标注原则、对应点的求取算法、对应曲线的等误差同步线性逼近方法以及电极丝最大倾角的计算方法 。
In this paper, by the motion analysis of four-axis wire-Electric Discharge Machining (WEDM) machine tools, it is concluded that, during the machining of intricate ruled surfaces only with linear boundary curves, the maximum inclining angle of the wire and the maximum displacements of the machining table and the wire guiding head occur on the vertices of the boundary lines.
通过分析四轴联动电火花线切割 (WEDM )数控机床的运动 ,发现在复杂直纹面的WEDM加工中 ,电极丝的最大倾角、上丝架和工作台的最大行程均发生在上下轮廓对应直线段的端点处 。
Research shows capacity of photovoltaic array can be confirmed,if generic program of optimum sizing stand-alone photovoltaic systems is adopted,and using days of storage of batteries equal to zero,at the same time the tilted angle with yields of the highest value of radiation in the month with the lowest radiation is considered as the optimum tilted angle.
研究表明,如果采用一般的独立光伏系统优化设计程序来进行设计,只要用蓄电池维持天数等于零代入,即可确定太阳电池方阵的容量,同时可以用当地辐照量最低的月份得到最大辐照量所对应的倾角作为方阵的最佳倾角。
The optimum tilted angle of fixed photovoltaic array toward the equator depends on the nature of loads besides the meteorological and geographical features,the characteristics of the three loads,balanced,seasonal and provisional,were studied.
朝向赤道的固定式光伏方阵最佳倾角除了取决于当地的气象和地理条件以外 ,还与负载的性质有关。
In determining the optimum tilted angle of fixed arrays for a stand-alone photovoltaic power system with steady load throughout a year, the continuity, uniformity and maximum of solar radiation on the surface should be considered comprehensively.
负载全年均衡分布的独立固定式光伏方阵,在确定最佳倾角时应综合考虑方阵面上太阳辐射量的连续性、均匀性和极大性。
According to the anisotropic Hay s model of the sky-diffuse radiation and the calculation of solar radiation of tilted surface, a mathematical equation for explicit calculation of the optimum tilt angle on a tilted surface toward the equator during heating season was developed.
根据天空散射辐射各向异性的 Hay模型 ,计算倾斜面上辐射量 ,推导得到了冬半年朝向赤道倾斜面最佳倾角的数学表达式 。
A method of determining the optimum tilt angle of fixed PV arrays based on CAD method is presented.
介绍了一种计算机辅助下的选取固定式光伏阵列最佳倾角的CAD计算方法。
It is found that the output power of the PV panel with a seasonal optimum tilt angle is increased by 12% in comparison with that of a horizontal panel,and the output power is decreased by about 5% when the temperature of the panel .
针对太阳能光伏板输出功率受条件制约的问题,通过Matlab建立了倾斜放置的太阳能光伏板表面所接收的太阳辐射能的数学模型,并实测了太阳辐射能及光伏板的输出功率等数据,探讨了太阳能光伏板的最佳倾角和温度对光伏电板输出功率的影响。
The optimum design was studied and calculation of the optimum slope were presented.
研究了非聚光的任意方位角倾斜面上太阳辐射的计算 ,其中散射辐射的计算采用 Hay模型 ,给出了最佳倾角的计算 ,为固定式太阳能利用装置的最佳设计提供了理论依据。
Tow parts are included in the paper: The study on the single crystalline silicon selective emitter solar cell and study on optimum slope design in PV engineering.
本文含有两方面的研究内容：选择性发射极太阳电池的研究和光伏工程最佳倾角的设计研究。
The optimum slope angle of PV arrays at different azimuth angles were researched in the paper.
本文研究了不同方位角光伏方阵的最佳倾角,用C语言编写了相应的软件,为太阳能利用装置的安装选择倾角提供了依据。
the optimal inclination angle is from 70° to 90°and the optimal charging ratio is around 50%;
最佳倾角为70°~90,°最佳充液率在50%左右;
Best Angle of Tandem Solar Collector in LHASA
拉萨太阳能集热器竖排安装最佳倾角分析
Research on optimal tilt angle of fixed PV panel
固定式太阳能光伏板最佳倾角设计方法研究
Investigation on Optimum Tilt Angles of Solar Radiation Absorbing Surfaces
太阳辐射接受面最佳倾角的计算与分析
The Best Calculation Principle of Retroversion Degrees of Retroversion Osteotomy
后倾角截骨术最佳后倾角的计算原理
including Best Actress, Best Director and Best Screenplay.
包括最佳女主角、最佳导演和最佳剧本。
Chicago received thirteen nominations, including Best Picture, Best Actress, and Best Director.
共13项，包括最佳影片、最佳女主角和最佳导演奖。
He maximized his role.
他使他的角色最佳化。
Study on Best Information Rule of WTO Antidumping Agreement;
WTO反倾销协议之最佳信息原则探析
Study on the Rule of Best Information Available in Antidumping Law
反倾销法上的最佳可获信息规则初探
A Preliminary Research on Optimal Receivable Information Rule in Anti-dump Law
反倾销法中的最佳可获信息规则初探
A New Study of the Best Record of Shot-putting and the Best Putting Angle;
推铅球最佳成绩和铅球最佳投出角度问题新探
the political orientation of those who hold that a republic is the best form of government.
认为共和制度为最佳政府制度的政治倾向。
Best Supporting Actress (nom) The Grifters 1990 Academy
最佳女配角（提名） 《骗子》 1990 奥斯卡金像奖
The central part of cornea is the best site for measuring intraocular pressure.
角膜中心是测量眼内压的最佳位置。
and earned him yet another Oscar nomination.
从而再次获得最佳男主角提名奖。
She won an Oscar nomination for best supporting actress.
她获得奥斯卡奖最佳女配角的提名。
"Hero"will compete for a Best Foreign Language Film Oscar. "
《英雄》将角逐奥斯卡最佳外语片奖。