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. (用作航标的)灯船
noun [专属名词]灯塔船;航路标志灯船
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。
It is a vitally important task to achieve control of the weight and center of gravity of lightship during building a new ship. 灯塔船在其建造的过程之中,其重量与重心的控制是一门非常重要的学问。