Admiralty Sailing Directions主要内容包括：
举一反三
- 202. The Admiralty Notices to Mariners can be obtained ____ by Masters of vessels from any Admiralty Chart Agent.
- Admiralty Notices to Mariners are published_______
- 装配工艺主要包括哪些工作内容?制订装配工艺规程包括哪些主要内容，需经过哪些步骤?
- 土方工程施工包括主要内容和辅助内容,其中辅助内容包括()
- 81. The range of a light on Admiralty Charts is normally the ______.