"mainly encompass" is correct and usable in written English.
You can use it when you want to explain that something contains mainly a certain group of things or ideas. For example: The items in our collection mainly encompass books and multimedia materials.
These requirements mainly encompass the obligation under Section 13D of the Exchange Act for a person or group of persons acquiring 5 percent or more of the voting shares of a public company to disclose that holding within 10 days of exceeding this threshold.
Even though there are some studies which were conducted on this similar issue in Ethiopia, they mainly encompass the urban area.
The data on biomarkers of the airways mainly encompass measurements of LPO products in EBC, whereas only one study examined 8-oxodG in nasal cells (Calderón-Garcidueñas et al. 1999).
The moderate zone extends over an area of 42 % (279 km2) and mainly encompasses the western part of the study area.
This method has been applied to a larger area mainly encompassing Rasuwa and Sindhupalchok counties of Nepal.
The effluent mainly encompassed four phase products which were gas phase, water phase, oil phase, and solid phase products.
The pilot plant mainly encompassed double air stage GSL gasifier, gas cleaning system, gas engine, feed and discharge system and programmable logic controller (PLC) system.
This review mainly encompasses on composite polymer electrolyte hosts namely poly ethylene oxide) (PEO), poly acrylonitrile) (PAN), poly methyl methacrylate) (PMMA) and poly vinylidene fluoride) (PVdF) studied so far.
For country credit, the existing indicator system mainly encompasses a country's economic, financial, social, cultural, geographic, and political fields including its relationship with other countries (Li et al. 2012a; Balkan 1992; Block and Vaaler 2004; Beirne and Fratzscher 2013).
A review of various studies on delamination failure mechanisms as a result of drop-off plies in the tapered composites is given next, which mainly encompasses a stress-strength approach and a fracture-mechanics approach.
The distribution of the crossback stingaree mainly encompasses the coastal waters of Victoria and Tasmania, where it is quite abundant; it ranges as far east as Jervis Bay in New South Wales, and as far west as Beachport in South Australia.
