Determining the hemisphere is easy: latitude zones a, C, d, e, F, g, h, J, K, l, and m are in the Southern hemisphere, and the rest are in the Northern hemisphere.
这种确定非常简单：纬度区a、C、D、E、F、G、H、J、K、L和m位于南半球，而其余区位于北半球。
2
'I think it is C-O-L-E-H-D,' he says.
“我想是C - O - L - E - H - D吧”，他说。
3
Due to the difficulty of FDTD dealing with the dispersive material, this paper use the D-B method instead of E-H method, which is more suitable for dealing with dispersive material.