The phrase "a substantial barrier to" is correct and usable in written English.
It can be used to describe a significant obstacle or hindrance to achieving something or making progress.
Example: "The lack of funding presents a substantial barrier to the project's success."
Alternatives: "a significant obstacle to" or "a major hindrance to".
Together, the proof of dominant market share and the existence of a substantial barrier to effective entry create the presumption that Microsoft enjoys monopoly power.
"Given the number of years it takes to train suitably skilled and qualified staff we believe a substantial barrier to the expansion of seven-day services could be insufficient numbers of appropriately trained staff".
And when Chinese companies spend these dollars outside the United States, they do not run up against American national security laws, which have been a substantial barrier to Chinese investment.
The recent vote by the Landmarks Preservation Commission to allow demolition of the Purchase Building under the Brooklyn Bridge, as a "substantial barrier" to the proposed Brooklyn Bridge Park ("Amid the Facades, Furrowed Brows," by Jeff Byles, March 19), opens a new chapter in the already sorry recent history of the commission's decisions.
In short, the proof of Microsoft's dominant, persistent market share protected by a substantial barrier to entry, together with Microsoft's failure to rebut that prima facie showing effectively and the additional indicia of monopoly power, have compelled the court to find as fact that Microsoft enjoys monopoly power in the relevant market.
Elevated interstitial fluid pressure can present a substantial barrier to drug delivery in solid tumors.
Implementing equilibrium-mapping tools in Python removes a substantial barrier to new development in and porting legacy code into Python.
For companies entering the emerging software as a service industry, the massive time and capital requirements remain a substantial barrier to entry.
In a developing country without these resources, the same learning curve may present a substantial barrier to applying more technically complex ecosystem service assessment tools.
Identification of whole-grain foods remains a substantial barrier to the development of a questionnaire that accurately measures psychosocial determinants related to whole-grain intake.
Immediate postplacental insertion of intrauterine devices (IUDs) during cesarean delivery could reduce a substantial barrier to access to long-term effective contraception.
