Another linear zone extends in a southwesterly direction from the region of most intense activity into northeastern Arkansas. 另一条线状区域是从最强烈的地震活动区起，向西南延伸到阿肯色州东北部。
To keep astronauts in the equivalent of an equatorial region, the living quarters of the spacecraft would have to be doughnut-shaped. 为了让太空人保持相当于赤道区的状况，太空船的活动区必须做成甜甜圈状。
美
