本文提出了一个较通用的直升机机动科目分段函数描述方法，该方法可以对ads - 33e - PRF规定的大部分任务科目建立逆仿真所需的数学模型。
A general mathematical method with subsection function is given to describe helicopter maneuver, most of mission task elements (MTE) defined in ADS-33E-PRF can be modeled.
二是编码设置，会计科目编码通常用阿拉伯数字编制，采用群码的编码方式即分段组合编码。
Two code establish, accounting title code usually use the Arabic numerals establishment, and adopt the cluster the coding method for code to namely divide the segment the combination of coding.
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