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state of emergency (governmental decree)
The government declared a state of emergency to prevent the spread of the new coronavirus.
(arithmetic) arithmetic operator
Arithmetic operators are symbols used for mathematical calculations.
unary operator (operator taking one operand)
A unary operator operates on one operand.
(algebra) binary operation
Binary operation is one of the basic concepts in algebra.
(mathematics, computing) operand
In this math problem, it is important to correctly understand the operand.
(dated, electronics) operational amplifier
This old operational amplifier still works accurately.
excavator
My father bought a new excavator.
a machine used for performing calculations; a calculator / computer
He solved complex mathematical problems using his new calculator.
a vacuum cleaner
My new vacuum cleaner is very quiet.
Kyūjitai form of 機会 (“opportunity”).
I can't afford to miss this opportunity.
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