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·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。