The phrase "a great complex of" is correct and usable in written English.
It can be used to describe a large and intricate system or arrangement of related elements, often in contexts such as science, sociology, or architecture.
Example: "The city is known for a great complex of interconnected parks and recreational areas that enhance the urban landscape."
Alternatives: "a vast network of" or "an extensive system of".
A great complex of technical and auxiliary schools, such as for cavalry and engineering, filled in the system.
"It will make a great complex of museums," Deborah Brasher said, "which the town fathers, including the Chamber of Commerce, are very enthusiastic about".
The town, which was deserted only a few years after it was built, is a great complex of palaces and lesser residences and religious and official buildings, all erected on top of a rocky ridge 26 miles (42 km) west of Agra.
In undertaking this ambitious and expensive project for the welfare of the people of the Lower Basin States and of the Nation, the United States assumed the responsibility for the construction, operation, and supervision of Boulder Dam and a great complex of other dams and works.
He told me that even though writers have used the expression "rocket science" to mean a great, complex type of intelligence, "rocket science is in many ways simpler than medical research and disease management.
It will be of great interest to determine whether TALPID3 and C2CD3 function in parallel, or as part of a greater complex necessary for GLI processing, centriolar docking or transition fiber formation.
It is assumed that the "camp" was once a great palace complex, of which the building called the Palace of Apries was only a small part, although possibly the main part.
They put forth a slew of great complex sauces and flavors but getting the black bean sauce, whether with scallops or razor clams, is always a safe bet.
A great deal of complex processing occurs within the two plexiform layers.
They are mainly implemented as software entities because they require a great amount of complex mathematical operations.
