lightship

noun

1. （海上导航用的）灯船
   a small ship that stays at a particular place at sea and that has a powerful light on it to warn and guide other ships

1. （导航用的）灯船
   A lightship is a small ship that stays in one place and has a powerful flashing lamp. Lightships are used to guide ships or to warn them of danger.

1. For the subsequent sister vessels, the lightship property of the first Vessel shall be used for this purpose.
   后续船的空船强度数据可采用第一艘船的。
2. The article briefly describes the general design situation and the major features of main dimension, subdivision form, main equipment, general arrangement, lightship weight, intact stability, damage stability, etc.
   本文从尺度特点、分舱形式、主要设备、总体布置、空船重量、完整稳性、破舱稳性等方面，扼要介绍了本船的开发设计概况及主要设计特点。

noun

1. a ship equipped like a lighthouse and anchored where a permanent lighthouse would be impracticable