Mission Critical

基本解释

Batch processing is, therefore, a fundamental, mission-critical component of the business and its IT infrastructure.
因此，批处理是业务及其 IT 基础结构的基础型、任务关键型的组件。
Consider almost any mission-critical applications in your organization, and you will discover that they are constructed from hundreds of classes and many thousands of lines of code.
想想您组织中几乎所有的关键任务的应用程序，您会发现它们都是由上百个类和许多成千上万的代码构成的。
And IT governance is about the way in which leadership accomplishes the delivery of mission-critical business capability using Information Technology strategy, goals, and objectives.
而 IT 治理是关于领导利用信息技术策略、目的和目标完成关键任务的业务能力的交付的方式。

Apparently, all of the above were considered military-grade, mission-critical methods of communication 100 years ago.
FORBES: What is the Ultimate Ruggedized Mobile Device?
If not, they certainly will not allow their mission-critical activities to be put into the cloud.
FORBES: Savvis: A $3.2 Billion Deal -- in the Cloud
Guidewire develops software for large insurance companies — helping with mission-critical functions like claims, underwriting and billing.
FORBES: How Guidewire's CEO Built a Public Company