GB/T 39208-2020可伸缩式全回转舵桨装置安装与调试规程标准
英文:Code of practice for installation and commissioning of retractable azimuth thruster GB/T 39208-2020介绍: 国家标准《可伸缩式全回转舵桨...
英文:Code of practice for installation and commissioning of retractable azimuth thruster GB/T 39208-2020介绍: 国家标准《可伸缩式全回转舵桨...