求翻译：液晶材料响应时间太长；非线性液体材料的破坏阈值高，有较强的非线性，有可恢复性，易于折射率匹配，因此应用较多。但是液体的密封，流动散热等问题也带来不少问题。是什么意思？

The liquid crystal material response time is too long; high damage threshold of the nonlinear liquid material, there is a strong non-linear, recoverability, easy refractive index matching, so the application of more. However, the liquid seal, the flow of heat has also brought many problems.

Liquid crystal response time too long; high damage threshold of nonlinear liquid materials, there is a strong linear, recoverability, ease of refractive index matching, so apply more. But liquid seal, flow heat dissipation problems also caused many problems.