影响铁路罐车罐体容积计量不确定度的一些因素（连载二）苗德霖（国家铁路罐车容积计量站）２．计算罐体挠度容积和方法。假定罐体园筒全长均产生正弦曲线下挠时，罐体的横直径不变，则罐体竖直径变化的挠度增量按正弦曲线变化。我们为了简化计算方法，用求挠度平均值的方... Some Factors Affecting the Uncertainty of Tank Tank Volume Measurement (Serial 2) Miaode Lin (National Railway Tank Volume Measurement Station) 2. Calculate tank volume and method of deflection. Assuming that the entire length of the cylinder of the canister produces sinusoidal deflection, the transverse diameter of the can does not change, and the deflection increment of the vertical diameter of the canister changes according to a sinusoidal curve. We in order to simplify the calculation method, with the average deflection of the square ...