noun
blue tarpaulin; blue plastic sheeting
Refers to the ubiquitous blue waterproof polyethylene sheets used in Japan for construction, camping, disaster relief, and general outdoor covering.
キャンプのとき、ブルーシートを地面に敷いた。
When camping, we spread a blue tarp on the ground.
地震の後、避難所にブルーシートが配
After the earthquake, blue tarps were distributed at the evacuation center.