But such disaster can be prevented if consumers simply refuse to purchase products that are made with CCCs copper until the company abandons its mining plans.
The current of current-controlled current source (CCCS) branch is controlled by the current of another branch, which makes it difficult to build the node impedances matrix (Z-matrix).
电流控制电流源（CCCS）存在不同支路电流之间的控制行为，给该类网络节点阻抗矩阵的形成带来困难。
3
The founding of the Center for Contemporary Cultural Studies (CCCS) at the University of Birmingham by Richard Hoggart in 1964 marks the establishment of cultural studies as a discipline.