Bridge bored pile reinforcement cage hoisting converter and use method thereof
Digital hydraulic cylinder automatic posture adjusting device and method based on intelligent sensor
Floating assisting structure of offshore steel truss drilling platform
Floating type steel truss construction platform for complex sea area
Freight logistics vehicle side wall lifting appliance and operation method thereof
Intelligent positioning system for offshore operation platform and implementation method
Laying method and laying device for underwater inductive coupling transmission equipment
Lifting appliance conversion device capable of realizing automatic unhooking
Method for underwater robot to sail along center line of tunnel
Portable retracting and releasing device for small buoy
Square hollowed assembled instrument carrying platform
Underwater flaw detection device and balancing protection mechanism thereof
water surface autonomous recovery system and recovery method for AUVs