Aviation ˌeɪviˈeɪʃn Noun Aircraft Avi·Ation Flying N T66pk8i74ce7fib4mrijfxskimhmqjcctljkimcbtvmerijugpo0w4x52hroedusouqnm9jzjaeeajupxgizlengmbgpkllscnc7oevvn/Kamwuc/Jtfmubr/Rc7hrlp/O4yieec6aysyfqgtb+6tcbjux9i991vvzrqshpkrfnojwkcyblutdliaedk4zoo58d8cxx3x53ok3hk4wodxgrdojn6ixdwjhxlqyftof0=
This flashcard defines "aviation" as an uncountable noun referring to the operation and production of aircraft, with examples like "civil/military aviation" and "aviation industry."
[N-UNCOUNT 不可数名词]航空;飞机制造业Aviation is the operation and production of aircraft.
Oxford
avi·ation/ˌeɪviˈeɪʃn; NAmEˌeɪviˈeɪʃn/noun[uncountable ]the designing, building and flying of aircraft 航空制造业;航空;飞行◆civil/military aviation民用╱军用航空◆the aviation business/industry航空业╱工业avi·ation/ˌeɪviˈeɪʃn; NAmEˌeɪviˈeɪʃn/