... extended period 延长期；持续期 extended range 扩充域；扩展范围 extended warranty 保修保险，延长保修；延长的保证期 ...
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本文采用格论方法研究拓扑学中连续映射的扩充问题，给出陪域为T＿3空间时连续映射扩充的充要条件。
By lattice-theoretic methods we give a necessary and sufficient condition for a continuous mapping with the codomain T_3 to be extended continuously from a dense subspace to the whole space.
本算法采用了将方块转换为圆盘的方式来完成值域块与定义域块的匹配，扩充了编码字典。
The algorithm completes the matching of the range and domain block by way of transforming the square to the disk, and expands the encoding dictionary.
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