... 面积元素 areal element; element of area; differential of area; 面积中心 centre of area; 面积注气 dispersed [pattern] gas injection; ...
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实验研究资料中心﹝义大利﹞ Centro Informazioni Studi Esperienze 面积中心 centroid; center of area 金属陶质 ceramer; metal ceramic ..
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... 面积元素 area element 面积中心 centre of an area 面积坐标 area coordinates ...
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文中给出了按照面积中心等效法合成SPWM波形的机理以及面积中心等效算法，并对双极性面积中心等效法生成的SPWM波形进行了谐波分析。
The paper puts forward the mechanism of combined waveform and computation of a SPWM area center equivalent. Harmonic of double pole SPWM waveform is analyzed in this paper.
它们将一束集中的光线反射到城镇的中心广场上，形成面积大约为600平方米的阳光区域。
They reflect a concentrated beam of light onto the town's central square, creating an area of sunlight roughly 600 square meters.
今年10月刚刚落成的这座新培训中心，面积扩大到2000平米，并增加了2000万美元用于培训设备投入。
This new training center which was just put into use in October this year is expanded to an area of 2,000 square meters and another US$20 million has been spent on new training equipments there.
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