ちょう高層 こうそう かみなり放電 ほうでんではありません
chōkōsō kaminarihōdendewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 超高層雷放電

1. It is not an ultra-high-rise lightning discharge.

Negative
Polite
Formal Register