例句與造句

1. This is an improved bound for r ( km , g )
   這是一個改進的上界。
2. In the study , several ways were adopted for surface oxidation treatment of carbon fibers to improve binding strength between copper coating and carbon fibers
   本研究嘗試多種方法對碳纖維表面進行氧化處理以提高鍍層與碳纖維之間的結(jié)合力。
3. It's difficult to find improved bound in a sentence. 用improved bound造句挺難的