system constituent

例句：

1. 1. The systemconstituent is responsible for the overallfunctionality of the device.
   系统组成部分负责设备的整体功能。
2. 2. The new software update includes severalsystem constituent changes.
   新的软件更新包括了几个系统组成部分的变化。
3. 3. Theengineer identified the system constituent that needed to bereplaced.
   工程师确定了需要更换的系统组成部分。