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飞机的长度和最大横截面面积之比也会影响音爆的强度。
The ratio of aircraft length to maximum cross sectional area also influences the intensity of the sonic boom.
肌纤维横截面积和最大宽度是反映肌肉功能状态的较为可靠的指标。
Cross-sectional fiber area and maximum fiber width are reliable indexes for muscle function compared with number of muscle fibers.
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