Wen Yi's Story Corner
Monday, May 9, 2011
Calulation infor
请先记住以下的几个数学,
每公顷(ha)等于2.4711英亩(acre);
每英亩等于43560方尺(s.f.);
每平米(sq.m.)等于10.7309方尺(s.f.)。
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