separationdisc离盘separationn.分离；分居；缺口；分隔线；[化]离析；【航】间隔Separation-of-variables approximations分离变量逼近separation of homonymous Chinese character同音汉字分化separation of transmission and distribution输配分开Separation between revenues and expenditures收支两条线separation of enterprise from administration政企分开separation-reaction-separation technique分离-反应-分离技术separation principles of chemical engineering化工分离separation between programming and broadcasting制播分离Separation -Concentration with polyurethane foam泡塑分离富集separation-and-reunion vocabulary of verbobject type动宾式离合词

1. The roof separation is the great safe peril in bolter support roadways.
   顶板离层是锚杆支护巷道最大的安全隐患之一。
2. The data of roof separation is considered to be a comprehensive index that can forecast the stability of roadways.
   顶板离层值是一个能预测巷道稳定性的综合指标。