A large industrial ventilation fan with pale green blades set against a textured, rust-colored wall. The fan has a protective grid in front of it, and the wall shows vertical streaks, possibly from weathering.

工業大風扇

A computer cooling fan or air cooler with a large, black circular fan is connected with multiple cables and placed against a bright yellow background. The design is sleek and modern, featuring a metallic grid structure.

環保冷風機

Solar panels are installed on a rooftop under a partly cloudy sky, capturing sunlight efficiently. The panels are aligned in neat rows, suggesting a modern approach to renewable energy.

屋頂光伏

Two men are working on installing large solar panels on a rooftop. One is kneeling and appears to be securing the panel with tools, while the other is standing and adjusting the panel. The background shows a view of a suburban area with houses and trees under a clear blue sky.

光伏系統