Statistical experiments and the application of the relative errorspread rule were employed.
研究方法：统计试验法，相对误差理论与误差传播定律的运用。
2
At the same time, according to the reservoir storage calculative model and errorspread theory, this study has explored a kind of accurate valuation method of river -.
同时，本研究根据库容计算的模型和误差传播理论，提出了一种河道型水库库容计算成果的精度评价方法。
3
As simple as the spread may seem, a lot of trial and error went into the design as with all of the spreads seen so far.