prolonged blast definition
prolonged blast means a blast of from four to six seconds duration;
prolonged blast means a blast of from four to six seconds' duration; "short blast" means a blast of about one second's duration;
prolonged blast means a blast of about 4 to 6 second duration;
More Definitions of prolonged blast
prolonged blast means a blast of between 4 and 6 seconds duration.
prolonged blast means a blast of from four to six second's duration.
prolonged blast means a blast of from four to six seconds’ duration sounded when motorboats are at close quarters distance so as to involve the risk of collision.
prolonged blast. ” means blast lasting four to six seconds; “short blast” means blast lasting within a second;