To account the torpedo ' s actual voyage accurately is very important for calculating calculate the maximum target range and the minimum target range under different tactical situation , and it is also of far reaching importance to evaluate the fire position 摘要準確地掌握魚雷的實際航程對于計算不同戰(zhàn)術(shù)態(tài)勢下的魚雷最大射距和最小射距、評估射擊陣位具有重要意義。