同样，还有一些情况下服务身份并不需要消费者的同意，如系统安全服务这样的强制性服务。
Also, there are cases where the status of the service does not require agreements with the consumers, for example, a mandatory service like system security service.
如果白宫的一项法案通过的话，破坏关键性基础设施系统并对其造成重大损害的黑客将面临至少三年的强制性监禁。
Hackers who breach and cause substantial harm to critical infrastructure systems would face a mandatory minimum three-year prison sentence if the White House gets its way.
在元器件或设备生产过程中的系统化测试，测试样品时对样品不产生破坏是强制性条件。
The systematic testing of components or equipment during manufacturing makes this non-destructive condition mandatory when testing a sample.
该系统的强制性结汇对外汇的增长作出了重大贡献。
The system of compulsory exchange settlement and sales contributes greatly to the growth of foreign exchange.
强制性内部控制报表能刺激管理层改善公司的内部控制系统。
A mandatory report would motivate management to improve its internal control system.
一些实际经验：农工商系统将很快被强制性的-通常，当这个系统出现故障，原因是氧传感器，因为它是一个新的系统，备件可能需要较长的时间来采购！
Some practical experience: Normally when this system fails, the cause is the oxygen sensor and because it is a new system, spares can take a long time to procure!
有些东西是强制性的，但更多的东西并不是，比如科学饮食，坚持、系统地锻炼，保持健康等等。
Some things shouldn't be optional - and for too many of us, they are. For example; intelligent eating, structured and regular exercise and healthy lifestyle.
有些东西是强制性的，但更多的东西并不是，比如科学饮食，坚持、系统地锻炼，保持健康等等。
Some things shouldn't be optional - and for too many of us, they are. For example; intelligent eating, structured and regular exercise and healthy lifestyle.
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