The phrase "a massive system of" is correct and usable in written English.
It can be used to describe a large and complex network or structure, often in contexts related to technology, infrastructure, or organizations.
Example: "The city has developed a massive system of public transportation to accommodate its growing population."
Alternatives: "a large network of" or "an extensive framework of".
To protect them, the Israeli military has established a massive system of guard posts, checkpoints and road closures since 2001.
But a city it is, with a massive system of infrastructure and spatial organisation that is no less impressive for being temporary.
You cannot give human values to a massive system of evolving information based on machinery that is being expanded and improved every day.
The formal legalization of PACs effectively institutionalized and legitimized what amounts to a massive system of special-interest financing of federal campaigns.
As I noted last week, scientists and conservationists are calling for the creation of a massive system of reserves in the Southern Ocean around Antarctica.
"Pretty much everywhere it seems you are going to be under water unless you build a massive system of dykes and levees," Strauss said.
They also have a massive system for harvesting the enormous quantities of water and the mineral resources of the soil required by trees.
In San Francisco a rival company has devised a way to hook thousands of cheap PC drives into a massive system capable of managing hundreds of terabytes of streaming video (see box, p. 150).
In San Francisco a rival company has devised a way to hook thousands of cheap PC drives into a massive system capable of managing hundreds of terabytes of stream-ing video.
Our massive system of regulations and regulators failed on a cosmic scale.
The seaward slope of many breakwaters consists of thousands of interlocking units of rock or concrete comprising a massive granular system of large elements each weighing tens of tonnes.
