water drills meaning in English

细条痕纸博

Applications of saturated salt - water drilling fluid system in
王坪井田断层分布规律及成因分析
Unsaturated salt water drilling fluid
欠饱和盐水钻井液
Development and applications of the solid emulsifier used to improve the performance of oil - in - water drilling fluids
有利于改进水包油钻井液性能的固体乳化剂的研制及应用
Water drill one etc . are coming into being . all kinds of shapes and all kinds of colors . it was said that the button was coming into being in 16 century in europe which was taken back from china by " east march " cross army
据传说，欧洲是在16世纪以后才有钮扣的，是由参加"东征"的十字军从中国带回去的。