例句與造句

1. Patterned checkboard mask
   棋盤圖形掩蔽
2. The analysis of the straw checkboard barrier paving robot ' s paving wheel structure by the finite element method
   草方格鋪設(shè)機(jī)器人鋪設(shè)輪結(jié)構(gòu)的有限元分析
3. It's difficult to find checkboard in a sentence. 用checkboard造句挺難的