A part or element of a larger system or device

• A self-contained unit that works with others to function

较大系统或设备中的部分或元件

• 与其他部分配合工作的独立单元

In graph theory, a maximal connected subgraph

• A connected subgraph not contained in a larger connected subgraph

图论中：极大连通子图

• 不包含于任何更大连通子图的连通子图

Forming or composing part of a larger whole

• Made up of smaller complete units in combination

构成整体一部分的；组成的

• 由多个完整单元组合而成的