New editions are published annually and updated by weekly NoticestoMariners.
新版每年出版一次并由周版航海通告改正。
2
Up-to-date Sailing Directions are available and corrected according toNoticestoMariners.
备有最新的航海指南,并根据航海通告进行了修改。
3
Section IV of Admiralty NoticestoMariners, Weekly Editions, contains selected urgent corrections to Sailing Directions that cannot wait until the next supplement.