Sentence examples for principal barriers from inspiring English sources

A16 2 Maine Dams to Be Torn Down Two dams on the sprawling Penobscot River in Maine are to be torn down, removing the principal barriers to salmon returning from the ocean to the river to spawn.

There are two principal barriers in the process of indentifying an optimal façade solution.

The DID concept is based on four principal barriers against the external release of radioactive products.

There are two principal barriers in the process of identifying an optimal façade solution.

One of the principal barriers to the widespread use of hydrogen as a road transport fuel is the need for a refuelling infrastructure to be established.

It could be seen as one of the principal barriers to the formation of a universal or semi-universal definition for SE and on the way to SE paradigm formation as well.

After 1725 the tribe reunited in Ohio, where they formed the principal barrier to the advance of colonial settlers.

This is where the corruption comes in, because the principal barrier to a more open and diverse politics in the UK is money.

The electorate's desire for change is robust enough, polls indicate, that questions about Mr. Obama may represent the principal barrier to Democratic victory in November.

It is also believed that the principal barrier to such a reform is the resistance of special interests to the elimination of any particular preference that benefits them.

In the early nineteen-seventies, biologists who were scanning baboon placentas with an electron microscope were surprised to see retroviruses on a layer of tissue known as the syncytium, which forms the principal barrier between mother and fetus.