Admiralty EasyTide().

A . has little use for ocean-going mariners B . permits the mariner to select and simultaneously calculate tidal heights for multiple ports for up to seven days C . includes periods of daylight and nautical twilight,moon phases and a springs and neaps indicator D . is supplied in the form of a single CD which contains the calculation program and the seven geographic Area Data Sets(ADS)providing global coverage

时间:2022-09-03 04:51:43 所属题库:航海出版物题库

相似题目