"There are surely limits of wisdom and prudence on federal spending," Mr Galbraith and his co-authors have written, "but there is no operational limit."

Galbraith和他的合著者写道，“联邦支出的智慧和谨慎当然会有界限，但是操作层面没有界限。”

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The measuring of reachable region and operational limit region of EVA spacesuit are the key points in spacesuit ergonomics.

其中舱外航天服的可达域和可操作域是航天服工效学研究的重点。

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As we saw last summer, the debt limit threatens real operational restraints.

FORBES: Medicare's Peculiar Budget Rules And The Fight Over Double Counting

Area denial refers to those actions and capabilities, usually of shorter range, designed not to keep an opposing force out, but to limit its freedom of action within the operational area.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century | Page: 3

The debt limit thus operates like the Social Securitytrust fund: it imposes an important operational restraint, and budget actions used to avoid it cannot pay for other programs.

FORBES: Medicare's Peculiar Budget Rules And The Fight Over Double Counting