短語詞組短語coefficient of hole -spacing 裝葯密集系數(shù)blast hole spacing pattern 網(wǎng)孔蓡數(shù)Hole spacing of maize 玉米穴距Surrounding hole spacing 周邊眼間距periphery hole spacing 周邊眼距bottom hole spacing [油氣]井底距離drill hole spacing 井距feed hole spacing 輸送孔間隔hole spacing pattern parameter 孔網(wǎng)蓡數(shù) 返回 hole spacing