The phrase "a critical support" is correct and usable in written English.
It can be used when referring to an essential element or resource that provides assistance or stability in a particular context.
Example: "The funding from the government serves as a critical support for the ongoing research project."
Alternatives: "an essential support" or "a vital support".
Continued Chinese expansion is a critical support for the troubled global recovery, but some deceleration is helpful.
But white working-class voters represent a critical support base for the Republican Party — and increasing numbers of them are shopping for an alternative with whom they feel some semblance of an emotional connection.
Of the money flowing to Wales this year, 42 percent is destined to pay for health and social services, including free prescription drugs and home day care for the elderly, a critical support for towns with a rapidly aging population like Blaenau's.
As such, near-peer mentoring relationships can provide a critical support for students who are typically underrepresented in the physical sciences.
Earlier in the week, the Russell 2000 broke below a critical support level at 740, and now the Dow Jones and S&P 500 are sitting right at their relative support levels.
New York's many modes of transportation – be it subway, cab or Citibike – also make last-minute impromptu lunches a breeze, not to mention that if a customer runs into a critical support issue, it's no big deal to pop by their office and save the day.
The Xbox version of Doom 3 received a similar level of critical support, holding a score of 88 percent on Metacritic and an 87.7 percent score on GameRankings.
It's garnered a lot of critical support.
They provide a range of critical support and intervention frequently invisible to us.
A lot of time gets spent speculating on autonomy and its ramifications for warfare, but unmanned vehicles also allow us to change how we do a lot of critical support stuff.
The vice-president's intervention for a carbon tax could give critical support to an idea that has gained currency since the election – at least among Washington thinktanks.
