volcanic accidentとは 意味・読み方・使い方

To provide a wheel mechanism capable of wheeling on a usual even ground as well as freely running on a stairway in a building, a running plane where large and small obstacles are scattered after explosion accident, a running plane where volcanic ash or large and small volcanic lapillus stones are scattered at volcanic explosion disaster sites or ice or snow covered roads.例文帳に追加

通常の平地を車輪走行できると同時に、建造物の階段や爆発事故等における大小の障害物が散乱する走行面、あるいは火山の爆発災害現場等の火山灰、大小の火山弾が散乱する走行面さらに氷上や雪上などを自由に走行する車輪機構を提供する。 - 特許庁