The phrase "assembling mass" is correct and usable in written English.
It can be used in contexts related to gathering or creating a large quantity of something, often in a scientific or technical setting.
Example: "The engineers focused on assembling mass to ensure the structure could withstand the forces acting upon it."
Alternatives: "gathering mass" or "building mass".
General Petraeus is also assembling masses of data.
The lineup of DC speakers began with a mother affected by Trump's immigration policies, who told the assembling masses after she was put in detention, she was separated from her son for nine months, during which time she was told he could be put up for adoption.
IN November 1970, after haranguing an assembled mass of Japanese soldiers about their betrayal of their nation's glory, the writer Yukio Mishima, aided by unflinching friends, committed seppuku, a form of ritual suicide that involves disemboweling, decapitation and an almost unthinkable mixture of discipline, pain and mess.
It was a sober affair, with barely a peep from the assembled mass.
The red carpet got its fair share of expensive shoes, with a cast that includes Steve Carell, Ryan Gosling, Emma Stone, Julianne Moore and Marisa Tomei, walking along and mugging for the assembled mass of photographers.
A team of riot cops appeared, but not before the assembled mass had made their way from the entrance and down to a branch of Starbucks.
The police were showing scant regard for protest etiquette; right after the protest started, they too started beating the shit out of the assembled mass of demonstrators, with riot cops laying into people all around us.
Unsurprisingly, the police were showing scant regard for protest etiquette; right after the protest started, they too started beating the shit out of the assembled mass of demonstrators, with riot cops laying into people all around us.
Before the assembled mass, Klein said that he hopes to break the world record for mileage on one car, now claimed by Mercedes-Benz for a 1957 model 180D, owned by Robert O'Reilly of Olympia, Wash., which was driven 1.18 million miles.
