Because of the limits of the ship dimension, slipway size and harbor area and size, the slipway and wharf is broken.

船舶下水因船与船台尺度、港湾水域与尺度的限制经常发生船台和码头破坏。

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In Vietnam, LBJ and his advisers placed off limits vital targets in Hanoi, Haiphong harbor and the North's supply chains, preventing the U.S. military from striking the enemy's war-making capacity and isolating the North from its allies.

WSJ: John Yoo: Obama, Drones and Thomas Aquinas