基本解释[交通运输工程]相位梯形英汉例句双语例句A trapezoid fuzzy figure is adopted to estimate the load change of distribution transformer and the single-phase distribution network model is constructed.采用梯形模糊数估计配变负荷变化情况，建立了单相线路网络模型。phase trapezoid更多例句专业释义交通运输工程相位梯形