求翻译：应指派适任和有一定经验的人操作折臂吊，保持钩头平稳移动。风浪较大或起吊贵重物品时，应适当增加止荡索和现场协助人员。是什么意思？

It should be assigned to qualified and have some experience who operate folding arm hanging, hook holding steady movement.

should be assigned the adapter and have experience in operating the arm to Keep hook moves smoothly. Waves are large or lifting valuables should be appropriate to increase the swing, and on-site assistance.

Should appoint suitably no matter what with has certain experience person to operate folds the arm to hang, maintains the hook steady migration.When the storm is big or the hoisting up valuables, should increase suitably stops swings the rope and the scene assists the personnel.

Should assign qualified and experienced person who folded crane, maintain stable Hook Mobile. When large waves or lifting valuables, swings should be increased, and assist staff.

正在翻译，请等待...