polymer-poor phase

例句：

1. 1. The polymer-poor phase is a region in the material where the polymer chains are sparsely distributed.
   聚合物贫相是材料中聚合物链分布稀疏的区域。
2. 2. In this phase, the polymer chains are tightly packed together, resulting in a strong and durable material.
   在这个相中，聚合物链紧密地结合在一起，形成了一种强韧耐用的材料。
3. 3. Polymer-poor phases are often used in engineering applications to improve the strength and durability of materials.
   聚合物贫相常用于工程应用中，以提高材料的强度和耐用性。