垄断的第三个源泉是对生产流程的某个关键或足够有价值的输入要素的控制。
The third source of monopoly is control of an essential, or a sufficiently valuable, input to the production process.
这种观念就是如果他们除去三要素中的一种，他们就能控制并最终灭掉火。
The idea is that if they can take away any one of the pillars of the triangle, they can control and ultimately extinguish the fire.
ERP环境下影响审计风险模型的构成要素主要包括固有风险、控制风险和检查风险三个方面。
There are three factors that affect the auditing risk under the condition of ERP, such as inherent risk, control risk and check risk.
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