tús maidneachain mhuirí是将“begin morning nautical twilight"翻译成 爱尔兰文。 译文示例:begin morning nautical twilight ↔ tús maidneachain mhuirí begin morning nautical twilight + 添加翻译 英文-爱尔兰文字典 tús maidneachain mhuirí langbot 显示算法生成的翻译 将“ begin morning ...
begin morning nautical twilightAlso found in: Acronyms. begin morning nautical twilight The start of that period where, in good conditions and in the absence of other illumination, enough light is available to identify the general outlines of ground objects and conduct limited military operations. ...
begin morning civil twilight The period of time at which the sun is halfway between beginning morning and nautical twilight and sunrise, when there is enough light to see objects clearly with the unaided eye. At this time, light intensification devices are no longer effective, and the sun is...