Water for the Taj complex was provided through a complex infrastructure.

We are far too reliant on a complex infrastructure and a web of international relationships and trade.

Yet in those days people were far less reliant on a complex infrastructure than now.

They became a form of urban street art, small reminders of a complex underground infrastructure that few could imagine, much less design.

While the method is developed for electricity markets, it can be applied to other technically complex infrastructures as well.

Also there was a problem of very complex infrastructures.

A complex infrastructure is needed to recover the material at the end of an article's useful life.

The money tree disappeared, and in its place stands the overwhelmingly complex infrastructure of the global financial machine.

The cost of preparing the entire memorial site, with its complex underground infrastructure, was put at $973 million.

And there is a widespread recognition of the inability to form a complex infrastructure by largely private means.