Sentence examples for existing lines are from inspiring English sources

Furthermore, the existing lines are not necessarily immortal.

Also, when existing lines are being electrified, they tend to be closed down for a while and this is not good news for users.

Further conversions of existing lines are currently either planned or underway.

The founder's guiding philosophy, however, assumes that profit margins on existing lines are rich enough to pay for the engineering on new products.

And the existing lines are extremely limited in their potential.

Some say this is necessary because the existing lines are insufficient and may not be safe for human use.

Cell lines become unstable or break down, many of those in existence have been nourished with mouse cells, and genetic diversity in the existing lines is sorely lacking.

Senators questioned the secretary for nearly two hours, pressing him on whether Mr. Bush would revisit his policy if experiments revealed that the existing lines were insufficient.

Speaking before Mr. Bush announced his decision, Dr. Varmus insisted on the need for developing more cell lines, saying the number of existing lines was unlikely to provide enough genetic diversity.

Simon Jenkins (High-speed rail will bleed us all for a few rich travellers, 6 January) argues that upgrading existing lines is sufficient to improve north-south rail connections, and a new high-speed line is unnecessary.

Sir David Higgins, HS2 Ltd's chairman, has previously hinted that an earlier report into the idea had found that enhancing existing lines was "more realistic", but that no definitive conclusion had been reached.