结果证明，利用正态型序贯分析来确定林火的等级是可行的、可靠的，具有实用价值。
The result shows that it is feasible, dependable and practical to determine the rank of forest fire using the method of normally distribured sequential analysis.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
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