Two-EC双变量误差修正twonum.二；两个Two-dimensional Analysis of Networked Society网络社会的二元维度分析two-photon photovoltaic photorefractive media双光子光伏光折变介质two-instantaneous-value-product algorithm两采样值积算法two -zonequasi-dimentional combustion model准维燃烧模型two-step leukocyte migration inhibition assay两步白细胞移动抑制试验two-dimensional photonic crystal wave-guide二维光子晶体波导two-colour automatic sheet-fed offset press对开自动双色胶印机Two-photon confocal laser scanning microscopy双光子共聚焦激光显微镜Two-dimensional spread spectrum communication二维扩频通信two- dimensional coupled harmonic oscillators二维耦合量子谐振子

1. Annual membership dues are two yuan per head.
   每人每年的会费是二元。
2. A tabulation of a function of two variables is cumbersome, but possible.
   二元函数的列表法是不方便的，然而是可能的。

1. Annual membership dues are two yuan per head.
   每人每年的会费是二元。
2. A tabulation of a function of two variables is cumbersome, but possible.
   二元函数的列表法是不方便的，然而是可能的。