The phrase "a strong mass" is correct and usable in written English.
It can be used in contexts where you are describing a dense or substantial quantity of something, often in scientific or descriptive writing.
Example: "The earthquake was caused by the movement of a strong mass of tectonic plates beneath the Earth's surface."
Alternatives: "a solid mass" or "a dense mass".
The mothers included in this study expressed a low confidence in their ability to educate their daughters about this topic, and rather than changing their own role in the family, they expressed the need for more active school involvement or a strong mass-media role at the society level.
First, if the big polluters move early, the rest have the confidence to follow, and the critical mass for a strong deal will emerge.
Therefore, low-fluidity coal can be blended with high-fluidity coal so that the fluid constituent can be combined with the non-melting fractions to form a strong solid mass.
For a moment, Ms. Samson, who dresses androgynously and sings along to lyrics about a "huge strong mass of feminist fury," sounds like a dreamy-voiced teenager who's just had an encounter with a rock star.
A two-million strong mass of democrats marched on the Grand Hall, believing this to be a fix, but Dredd was able to both convince Blondel Dupre that the result was accurate and break her will in front of the others, pressuring her to state in public "you are the law".
Because it came in response to rumors of a vast army of Christians and Jews, a quarter of a million strong, massing in the north and planning to exterminate the 25,000 Muslims then living.
Consequently we optimize this recovery achieved for IG20 when doped tissue suspension was deproteinized with proteinase K prior to glycolipids extraction, yielding a clean and strong mass signal for IG20 in spinal and, much less intensive, in brain tissue and 4(f), resp).
But the government doesn't represent Mexican society, which is very heterogeneous, and which is, right now, building up a strong critical mass.
The repeated impact history of a particular rock can result in a breccia welded either into a strong, coherent mass or into a weak, crumbly mixture in which the matrix consists of poorly aggregated or metamorphosed fragments.
