The custodian pressed the emergency stop button, closing huge valves in the sea lines and ceasing all oil and gas production.

He was also involved with a sea line, the Albyn Line, which bore the beginning letters of his surname.

The ice cap will go right down to the sea line in most places.

"To assure our friends, we have to have capabilities to secure the critical sea lines of communication," he said.

The Persians will find a way around to your rear, and even if they don't, their fleet will break the Athenian sea line within another day.

The sea line of these islands declared international and left to administration of "Zone of Straits."

Many rigs had sensors on the columns and motion detectors along the sea line.

It has an international sea line to Ancona in Italy.

Suffice it that by midday the island had disappeared under the sea line, and by nightfall we were well on our way back to Sydney.

Large carriers were not needed to support the naval strategy of disrupting sea lines of communication.