大炮轰击了敌军阵地.Cannons bombarded enemy lines.我们的重炮轰击堡垒的墙.Our heavy guns pounded the walls of the fort.重炮对着要塞外墙 ( 不停地 ) 轰击.The heavy guns pounded ( away at ) the walls of the fort....
中国有世界最古老的树种 -- 水杉.China has the world's most ancient tree species -- metasequoia.采用正交试验方法,确立了徽波法提取水杉黄酮的提取工艺条件.The extraction technology of flavonoid in Metasequoia microwavean orthogonal test was studied.2005年7月25日,...