At corners of cargo hatchopening, plating to be well rounded and ground according to Rules.
在货舱舱口，所有的板应根据规范要求打磨圆角。
2
This paper presents the theory and method of analyzing horizontal-torsion-coupled dynamic behavior of a ship hull with large hatchopening by the transfer matrix method.
提出了用迁移矩阵法分析长大舱口船弯扭耦合动力特性的理论和方法。
3
Fast-opening blind is applied in the circular hatch of pressure pipeline and pressure vessel, which can be opened and closed fast.