Li Chenmo nodded and explained, "When we went to the mountain foothills to gather bamboo shoots, my wife asked me if it was possible to use bamboo instead of iron frames and thatch instead of plastic."
"When I heard her suggestion, I thought it was worth trying. So, we experimented with bamboo poles and thatch. While these materials were easier to obtain and significantly cheaper, their ability to retain heat wasn't as effective as plastic."
"Besides that, using thatch also blocked sunlight from entering the greenhouse, unlike transparent plastic. Because of this, we made modifications to the design."
At this point, the brigade secretary opened the envelope and examined the design. The moment he saw the modification, his eyes lit up. With a movable rooftop, using thatch as a replacement for plastic became feasible.
"How about temperature control?" he asked.
