melt flow instability

例句：

1. 1. The meltflow instability of the material isa critical factor in its processing.
   材料的熔流不稳定是其加工过程中的一个关键因素。
2. 2.The melt flow instability of thealloy was studied to understand its behaviorduring solidification.
   合金的熔流不稳定被研究，以理解其在凝固过程中的行为。
3. 3.In the case of high pressure and temperature, the melt flow instability canlead to significant material deformation.
   在高压和高温的情况下，熔流不稳定可能导致显著的材料变形。