castle Military Dockyard 造船所 Military Dockyard can produce warship required by the fleet. 造船所可以建造更為大型的船舶,並提高貿易吞吐量。
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castle Military Naval Drydock 遠洋船塢 A Naval Drydock allows the largest ships to be constructed, and also allows the free passage of much cargo. 遠洋船塢可以建造最為大型的船舶,並且可以吞吐大量貿易貨物。
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castle Military Shipwright 船塢 A Military Shipwright allows the construction of war ships to be undertaken in earnest. 船塢可以大為提高船舶建造效率。
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