an extra component of a machine or other apparatus
an extra car wheel and tire for a four-wheel vehicle
a score in tenpins; knocking down all ten after rolling two balls
动词 spare:
refrain from harming
save or relieve from an experience or action
give up what is not strictly needed
use frugally or carefully
例句
用作名词 (n.)
I'll show you where the spares are kept. 我来指给你看放备件的地方。
Also be responsible for plant instrument operation management and tracking record including spares fulfillment after normal operation. 正常运行后负责装置各类仪表运行情况的管理和跟踪记录包括备件的落实情况。