1. Especially during testing, unseparated requirements add an extra burden to your project because precise validation and verification of the requirements are more cumbersome. 特别是在测试阶段，未被分离的需求将给整个工程带来额外的负担，因为此时对需求进行精确的确认和查证是一件非常麻烦的事情。
2. An extruded composite utilized as a building material includes a base polymer, unseparated processed recycled carpet waste, and a filler material, which may be a wood filler or other natural fiber. 用作建筑材料的挤压复合材料包括原料聚合物、未分离处理过的再利用毯废料和充填材料，充填材料可以是木材纤维或其它天然纤维。
