The phrase "accumulated mass of" is correct and usable in written English.
It can be used to describe a collection or buildup of something, often in a scientific or analytical context.
Example: "The accumulated mass of sediment in the riverbed has significantly altered the water flow."
Alternatives: "total amount of" or "cumulative mass of".
Or that an accumulated mass of evidence has documented Russian human rights violations against Chechens on a grand scale.
The number of raindrops may increase so rapidly in this manner that after a few minutes the accumulated mass of water can no longer be supported by the upcurrents and falls as a heavy shower.
It is clear that only a major public sector-driven house-building programme will harness the labour wasted on the dole, break the stagnation that separates supply from demand, and clear the accumulated mass of unfit, damp and decaying housing over the next 10-15 year period.
A strict relation between accumulated mass of frost, air-side pressure drop and cooling capacity was also observed.
According to theory, the enormous accumulated mass of the star ignites a special type of reaction that creates both electrons and their antimatter counterparts, called positrons.
In the modeling, the possibility of deposition in the header was evaluated by accumulated mass of particles; we used the velocity contour of supercritical water (SCW) to evaluate the uniformity of the velocity distribution among the tube passes.
Yet the musical ideas seem chosen not for their intrinsic interest but because of the way they set off accumulating masses of shimmering, dense and hazy piano sound.
He was describing his signature approach — accumulating masses of revealing detail to drive a lyrical narrative about ordinary people trapped in conflict.
Jay Gould was not being disingenuous when he testified before the U.S. Senate in 1883 that capital feared the rapidly accumulating masses of "uneducated ignorant people" from abroad, who might turn against property.
The latter is accompanied by an almost complete loss of the previously accumulated mass.
In order to accumulate mass, however, only a portion of the accreted gas can be ejected, so that with each cycle the white dwarf would steadily increase in mass.
