Commercial divers perform underwater activities related to construction, inspection, search, salvage, repair and photography.
商业潜水员进行水下施工，验收，搜索，打捞，修复和摄影等相关活动。
2
Salvage work was hampered yesterday by the swampy surrounds, and work to repair the track was expected to continue today.
因地处沼泽地带，清理工作昨天进展迟缓。线路修复的工作，预计今天仍需继续进行。
3
The shipyard will contact the Shanghai Salvage Bureau before the warranty expired and will get everything ready for the guaranteed repair before contract termination.