大家都搜:
矿脉中的产状
1、blue veins───静脉血管;青筋
2、hepatic veins───[解剖]肝静脉;肝门静脉
3、valves in veins───静脉瓣膜
4、occurrence crossword───出现纵横字谜
5、bulging veins───隆起的静脉
6、occurrence form───发生式保单
7、varicose veins───n.静脉曲张( varicose vein的名词复数 ); (尤指腿部的)静脉曲张
8、occurrence───n.发生;出现;事件;发现
9、veins───n.[解剖]静脉(vein的复数);[木]纹理;v.使有脉络;使成脉络状(vein的三单形式)
1、of residual deposit in the sourthern zone of a copper ore mine, inclined thin veins with difficult occurrence and complicated mining conditions were discovered.───倾斜极薄矿脉的开采国内外最常用的采矿方法是浅孔留矿法,实践表明,该法存在人工劳动强度大、矿石贫化率高等缺点。