1.   In China, canal locks and the crankshaft are being used to advantage, and they have just invented gunpowder, but use it for fireworks, not weapons.

2.   It has underwritten a feasibility study for construction of new canal locks and is offering to finance a new bridge on extraordinarily generous terms.

3.   The boats were rafted to a tugboat which was lashed to a canal lock alongside, when the tug accidentally swung free from the lock.

4.   Some go to the nearby canal locks to watch the ships raised and lowered.