The air resistance may be overlooked if the load density is large.
对密度大的货物空气阻力可忽略不计。
The power spectrum density (PSD) function is important in gust load flight experiment data analysis.
功率谱密度（PSD）函数在阵风载荷飞行试验数据分析中占有重要的地位。
It has high density, good load capacity and wear-resistant.
它具有高密度，有良好的承载压力及很好的耐磨性。
It has high density, good load capacity and wear-resistant.
它具有高密度，有良好的承载压力及很好的耐磨性。
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