The article holds that the relative balance in non- inertial system can be dealt with by analytic statics of non-inertial system besides the method of vector mechanics.
非惯性系中的相对平衡问题，除矢量力学方法外，还可用非惯性系分析静力学方法处理。
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Systematic management model is set up by time series analytic method based on water balance equation to control, predict and manage groundwater resources system.
To study effects of a number of differences on the output power balance, the power-balance integrated analytic model of high-power solid-state laser has been established.