reversible polymerization

例句：

1. 1. The process is reversible; it can be reversed ifnecessary.
   这个过程是可逆的；如果需要，可以逆向进行。
2. 2. Thematerial is reversible; it can be changed backto its original state.
   这种材料是可逆的；它可以被改变回其原始状态。
3. 3. The experiment showed that thereaction was reversible.
   实验表明该反应是可逆的。