应用力学原理，通过数理分析，结合射击项目对影响因素进行评价。
Mechanics principles and mathematical physics analysis were applied, and factors which affected flight trajectory during three projects were evaluated.
首先通过数理分析，建立数学模型，推导公式，计算相位角变化值和线电压值。
Firstly, according to the mathematical analysis, the model is established and formulas are deduced to calculate phase angles and line voltages.
通过数理统计分析确定了存放天数指标，并在批量生产中有效地控制了全尺寸固体发动机燃速性能。
Determining the index of days through the analysis for mathematical statistics, and controlling effectively the burning-rate performance of the full-size solid engine.
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