Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

The Riemann sum is a method for approximately calculating the integral of a function.

The Yasakani no Magatama is a divine artifact that appears in Japanese mythology.

The Twenty-Eight Mansions is one of the constellations used in ancient Chinese astronomy.

Octans is one of the constellations in the southern sky.

He is able to both talk and do, and can handle any job.

I will hold my birthday party on the twenty-eighth day of the month.

It is said that Yagamihime of Inaba was a very beautiful princess.

A tesseract is a four-dimensional geometric shape.

The tesseract represents a four-dimensional geometric shape.