岩基的定义是巨大的花岗石侵入岩体.A batholith has been defined as a huge intrusive mass of granitic rock.川西乡城地区的玻镁安山岩基质中辉石微晶具有奇特的枝晶形貌.Pyroxene crystallites in boninite matrix possess peculiar dendritic morphological features in the Xiang...
亚历山大的工兵修建了浮动的筏子来运载沉重的弩炮.Alexander's engineers built floating rafts for the heavy catapults.世界在冷战中剑拨弩张.The world lives at daggers drawn in a cold war.双方剑拨弩张.The knives are out on both sides....