Distance between center tank stringer scallop &drain hole is 60mm. Scallop to be covered by WT lug. Refer to IACS table 7.3&9.3, other ways in table 9.3 are OK.是什么意思_Distance between center tank stringer scallop &drain hole is 60mm. Scallop to be covered by WT lug. Refer to IACS table 7.3&9.3, other ways in table 9.3 are OK.在线翻译_英语_读音_用法_例句