... 可转位球头立铣刀 ball nose end mill with indexable inserts 压裂支撑剂 fracturing propping agent 语法语义 syntactic semantic ...
双语例句
1
Experimental study shows that the damage rate of fracturing fluid to fracture surface is between 31. 84% and 36. 28%; the damage rate to proppingagent layer is between 29. 27% and 30. 04%.