风呼啸着穿过屋脊.The wind whistled through the eaves.屋脊从中部裂开.The ridge was split in the center portion.屋顶上有几堆碎瓦,左厢房的屋脊打落了一角.然而枪炮声已经绝迹了.There was only desultory firing now, and the general atmosphere was fairly peaceful....
In the epoxidation, chloroform and t butanol gave the best results.在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.The definilion of kauri - butanol value and its determination method is described.文章叙述了“溶剂汽油”一词的由来,K. B.值的定义及测定方法.The ...