活动梁 meaning in English
portable beam
shifting beam
walking beam
Examples
- Specification for the marking of hatchway beams
舱口活动梁标志规范 - Tranvelling hatch - way beam
舱口活动梁 - Travelling hatch - way beam
舱口活动梁 - Travelling hatchway beam
舱口活动梁 - Traveling hatchway beam
舱口活动梁