Companies such as Capitaland and Breadtalk have made substantial inroads into China's domestic economy.

American officials said that if the expanded program was sustained, it could at last make substantial inroads against Colombia's coca growing.

If the new forms of 'Christian' music can find financial backing, substantial inroads could be made into the music industry in Europe.

They have made substantial inroads in the traditional market for three- and four-liter glass jugs.

Electric-power has made substantial inroads into the park-flyer and 3D-flyer markets.

Digital processing has already made substantial inroads into television, and studios now routinely use it to create special effects.

While hybrids have slowly grown in popularity as passenger vehicles, they have yet to make substantial inroads into commercial fleets.

"You need to make substantial inroads among Democrats," Mr. Mahoney said.

Stoddard's working capital has remained tightly controlled and the new controls at Sekers will make substantial inroads into its borrowings.

Housing police have made substantial inroads on the drug dealers that once held the Red Hook projects hostage.