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.
标距长度和试样在直径减少处的横截面面积之间有固定的关系。
There is a fixed relationship between the gauge length and the cross-sectional area of the test-piece at the reduced diameter.
如土壤类型，衬里这种事（如有），横截面面积和形状都影响损失。
Such things as soil types, linings (if any), cross-sectional area and shape all affect losses.
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