parts dry weight

例句：

1. 1.The parts of the machine are all assembled together.
   机器的各个部件都已组装在一起。
2. 2. Each component plays a crucial role in the operation of the system.
   每个组件在系统的运行中都扮演着至关重要的角色。
3. 3. The constituents of the compound were analyzed to determine its chemical composition.
   化合物的组成成分被分析，以确定其化学组成。