GB 40556-2021海船机舱进水应急操作技术要求标准
英文:Technical requirements for flooding emergency operation of sea-going ship engine room GB 40556-2021介绍: 国家标准《海船机舱进水应急操...
英文:Technical requirements for flooding emergency operation of sea-going ship engine room GB 40556-2021介绍: 国家标准《海船机舱进水应急操...