"mainly entered" is correct and usable in written English.
It can be used in various contexts, but it is typically used to describe something that is mostly or primarily included or included prominently in something else. Here is an example: "The competition was open to all ages and skill levels, but the winners were mainly entered in the intermediate category."
The commission mainly enters into agreements with companies for recalls rather than going to court to compel action.
CPNA could mainly enter cell plasma based on endocytosis.
QDs mainly enter the cells by endocytosis, and the fluorescence performance of QDs in the cells can last over a week and does not affect cell morphology.
Allochthonous OM inputs, indicated by long-chain n-alkane and long-chain n-alkanol biomarkers, generally declined in abundance from northwestern (Zhushan Bay and Meiliang Bay) to southeastern (East Bays) parts of the lake, suggesting a critical influence of hydrology, and in particular of inflowing rivers, which mainly enter the lake from the west and drain from the east.
Arsenic mainly enters drinking-water supplies through natural deposits in the soil, but also through industrial and agricultural activities (including discharge of industrial wastes, burning of fossil fuels - especially coal - and wastes, or use of pesticides and food additives).
The majority of these job seekers — French speaking, slow to assimilate, mainly Catholic — entered without visas, work permits or passports, because during most of this period our land border with Canada was effectively wide open.
By contrast, he said, the summer internship he had at the New York Press while he was an undergraduate at Yale consisted mainly of entering listings data and opening mail.
Mr. Richardson has the central role, set apart from the other dancers, but that part consists mainly of entering and exiting the stage, over and over, as if he were having a great deal of trouble deciding to retire.
