Sentence examples for natural obstacles from inspiring English sources

There are natural obstacles, too.

Some serious marine innovation has overcome natural obstacles.

In a statement on Tuesday the PKK announced it would withdraw despite some "natural obstacles".

With natural obstacles like mountain ranges or intense weather systems, other settlements are deterred from forming nearby.

Rather, natural obstacles can hamper communications with the tiny radios, which often have less than a watt in power.

Because the topography provides no natural obstacles, each village may easily be moved from place to place.

The winding courses of up to two and a half miles are designed to mimic the natural obstacles of rural landscapes.

The barge hit all kinds of manmade and natural obstacles before the months-long odyssey was scuttled and the mansion demolished.

"It's not galloping cross-country over natural obstacles anymore," said Ilana Gareen, an amateur rider and assistant professor of community health at Brown.

Both field and permanent fortifications often take advantage of natural obstacles, such as canals and rivers, and they are usually camouflaged or otherwise concealed.

For passive antitank defense the line depended upon natural obstacles, such as rivers and lakes, and upon "dragon's teeth," five rows of pyramid-shaped reinforced concrete projections.