这种拼图玩具是由可拆卸的部件组成的。

This puzzle toy is made of ___separable pieces.

这两个问题虽然相关，但实际上是可分开讨论的。

These two issues are related but actually ___separable for discussion.

这个优化问题可以分解为两个独立可分离的子问题。

This optimization problem can be broken down into two independent ___separable subproblems.