China's Antarctic exploration ship Snow Dragon arrived at the Great Wall Station in Antarctica Thursday after a month of day-and-night navigation.
经过一个月的昼夜航行，中国南极考察队12日乘"雪龙号"考察船抵达中国南极长城站。
In this paper, with the deck officers and pilots as the study subjects, a widespread research was carried out on the impact of "light pollution at sea" on night navigation.
本文以船舶驾驶员和引航员为对象，就“海上光污染”对夜航船舶避碰的影响进行了广泛深入的调查。
These include custom-made navigation tools and night vision systems.
其中包括定制的导航工具和夜视系统。
An advanced and practical navigation management and control system of night flight aircraft's taking off and on in airport was discussed, and the use of 8098 single chip microcomputer was expounded.
本文论述了一种先进实用的机场夜航机起降导航的控制与管理系统，并阐述了8098单片微机的应用。
The ship that strictly forbids super breadth, extremely high and super draft enters that navigation canal and forbids the sail in night, with the plan navigation safety.
严禁超宽、超高、超吃水的船舶进入该航道，禁止夜航，以策航行安全。
This series of signal Light is used for vessels navigation signal at night. Its behavior is in agreement with 1972 International Marine Regulation for Prevention of Collision.
该系列号灯适用于船舶作夜航灯光信号，符合《1972年国际海上避碰规则》。
This series of signal Light is used for vessel navigation signal at night. Its behavior is in agreement with 1972 International Marine Regulation for Prevention for Collision.
该系列号灯适用于船舶作夜航灯光信号，符合《1972年国际海上避碰规则》。
This series of signal Light is used for vessel navigation signal at night. Its behavior is in agreement with 1972 International Marine Regulation for Prevention for Collision.
该系列号灯适用于船舶作夜航灯光信号，符合《1972年国际海上避碰规则》。
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