Window for parking unmanned aerial vehicle and parking method of unmanned aerial vehicle
Multi-capsule captive balloon system and use method thereof
Four-side pyramid-shaped fluid director and design method thereof
Charging method and device, mobile equipment and computer readable storage medium
Method for controlling vehicle power supply device, and vehicle power supply device
Integral or sectional type construction method for high-leakproofness air pipe in narrow hoistway
Discharging method and device, computer equipment and storage medium
Electromagnetic lifting appliance with anti-rolling mechanism
Direct-current charging equipment and method for electric vehicle