A better gauge of an economy's use of resources is "total factor productivity" (TFP), which tries to assess the efficiency with which both capital and Labour are used.
一个衡量经济资源利用的更好指标是“全要素效率”(TFP)，TF P试图用资本和劳动力同时来分析效率。
The physical phenomena concerning with the gauge field are most completely and exactly described by non-integrable phase factor.
因此不可积相位因子最完整地描述了与规范场有关的物理现象。
It is justified that the integral of the gauge potential along path of not only electron but also scalar particle or spinor particle will contribute a geometric phase factor.
证明了规范场不仅沿入射电子在复连通区域运动路径的积分，而且还可沿入射标量或其他旋量粒子之一在复连通区域的运动路径积分，各自都将贡献一几何相因子。
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