弦心距
- 网络OE; chord-center moments

弦心距
OE
九年级数学上册全册教案_免费教案_当知网 ... 当洪水泛滥时,水面宽 MN=32m 的弦心距,如果 OE=OF, 于点E,则 CE=DE…
chord-center moments
2008-10-2 --... ... 外公切线: exterior common tangents 弦心距: chord-center moments 49.多面体: polyhedrons ...