subassembly

"The school's computer network is a complex of interconnected systems, linking classrooms, libraries, and administration offices. "

"Russia is a large country.   The fruit-fly has large eyes for its body size.   He has a large collection of stamps."

"He assembled the model ship."

"The editor composed a historical journal from many individual letters."

"The doctor gave the patient a flu injection. "

"The soup is cooling on the counter. "

"A small group."

"The factory produces car engines by first creating various subassemblies, like the piston assembly and the fuel injection system, which are then combined to create the complete engine. "

"The ancient Romans used a powerful siege engine to break down the city walls. "

""She helped me with my homework, and I helped others with theirs." "

"There are eight planets in the solar system."

"In order to change the bearing, you must first remove the gearbox assembly."