"We know we live on a rock, but the poor people of Ascension live on a cinder," the residents of St Helena had joked before his departure.
“我们知道我们生活在岩石上,但阿森松岛可怜的人们是生活在火山灰渣上,”圣赫勒拿岛的居民在他离开之前曾开玩笑说。
Xuehu coal main and subsidiary well have deep shaft, thick surface soil and strong disability, poor pourability in the hydrated grope rock and complex geology condition.
薛湖煤矿主、副井井筒井深、表土厚且膨胀性强、基岩含水层可注性差、地质条件复杂。
The organic abundance of Beipiao Formation hydrocarbon source rock is not very high and belongs to poor to middle grading.
北票组烃源岩有机质丰度不高,属差—中等烃源岩;
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