求翻译：d.铝板的安装：安装时按照弹好的板块安排布置线，从一个方向开始依次安装，安装时应从板的一侧推入龙骨，再顺势将板块的另一边塞入，安装时要轻拿轻放，保证板面不受损。是什么意思？

D. installation of aluminum sheet: when installed in accordance with excellent elasticity and plate arrangement of lines from one direction and begin to turn the installation, push installation from one side of the plate into the keel, once again into the other side of the plate, to handle with care when installing, ensure the Board is not damaged.