Though corporate travel revenues grew by 21 percent from the first quarter of 2009, that segment remained flat when compared with the previous quarter.

For instance, we can model a few hundred water molecules on a small segment of a flat surface or a surface with some very well-defined defects.

Daniudi gas field locates in the east segment of Northern Slope of Yishan in the basin of Ordos. It is a large compound gas field folding to connect into sheet on a flat surface.