The phrase "a combination of pressure" is correct and usable in written English.
It can be used when discussing factors or elements that come together to create a certain effect or situation, particularly in contexts related to stress, influence, or physical forces.
Example: "The athlete performed exceptionally well despite a combination of pressure from the audience and the expectations of her coach."
Alternatives: "a mix of pressure" or "a blend of pressure".
If, through a combination of pressure and enticement, Pakistan and the United States can draw sections of the Taliban into peaceful negotiations, while incarcerating those who refuse to participate, it will produce a sweeping change in the war.
This paper analyzes a membrane of a dielectric elastomer, prestretched and mounted on a rigid circular ring, and then inflated by a combination of pressure and voltage.
The forests were then transferred to a pre-cured laminate interface, using a combination of pressure and heat, while maintaining through-thickness CNT alignment.
Phase holdups at different heights of the column were measured by means of a combination of pressure drop and sampling methods.
The press is widely seen as timid in its criticism of the Communist Party; cowed by a combination of pressure from advertisers and crude intimidation, such as a knife attack on a former editor earlier this year.
In recent months, a number of companies have decided to pull out of Iran, because of a combination of pressure by the United States and other Western governments, "terrorism free" divestment campaigns by shareholders and the difficulty of doing business with Iran's government.
In the years immediately after 1890, a combination of pressures sharply reduced the amount of gold in the U.S. Treasury, precipitating a panic in the spring of 1893.
On top of the timeless complications of being 12 years old, an age of bubbling hormones and anti-authority stirrings, sixth graders today face a combination of pressures that their parents never encountered.
A combination of pressures made American cars of the 1950s high-powered and ornate, with extravagant use of chrome and exaggerated tail fins; these features were abandoned when the public found the simpler lines of imported cars more attractive.
This will occur only if a combination of pressures are brought to bear: Chinese politico-military coercion, international diplomatic isolation, economic deterioration (particularly compared to ASEAN success) and growing military pressure from the Cambodian resistance.
