So system architects employ a strategy called defence in depth, which uses many layers of varying security mechanisms to frustrate attackers.

因此，系统架构师采用了一种称为纵深防御的策略，该策略使用多层不同的安全机制来挫败攻击者。

It said that as China opens wider to the outside world, the country needs to " strengthen financial security mechanisms " and promote the development of a homegrown, controllable cross-border payment system.

随着中国对外开放的扩大，建设安全高效的金融基础设施，统一金融市场登记托管、结算清算规则制度，建立风险早期纠正硬约束制度，筑牢有效防控系统性风险的金融稳定保障体系。

We don't know to what extent companies are co-operating with the government or to what extent the government might try to circumvent company security mechanisms in order to then be able to listen to what you're doing.

我们不知道为了能够听到你在做什么，公司在多大程度上与政府合作，或者政府在多大程度上可能试图绕过公司的安全机制。

Over the past 75 years, with peace as its mission, the UN has set up and operated a collective security mechanism, engaged in active mediation to settle disputes peacefully and deployed over 70 peacekeeping missions to conflict zones.

75年来，联合国以和平为己任，建立并践行集体安全机制，积极开展斡旋调解，推动和平解决争端，向冲突地区部署70余项维和行动。