polyoxytrimethylene

例句：

1. 1.This material is known for its high strength and toughness.
   这种材料以其高强度和韧性而闻名。
2. 2. The polyoxytrimethylene fibers are used in various applications.
   聚三氧甲基纤维被用于各种应用中。
3. 3.Polyoxytrimethylene is a type of plastic that is resistant to heat and chemicals.
   聚三氧甲基是一种耐热和耐化学物质的塑料类型。