气体 (qì tǐ): Gas (i.e. gaseous substance) (Noun) — Meaning & Stroke Order

This kind of gas is colorless and odorless.

The factory must treat and release gases that meet the standards before discharging them.

Long-term exposure to toxic gases may lead to death by suffocation.

Don't you know that burning plastic produces toxic gases?

At high temperatures, solid iodine will directly sublimate into purple gas.

This chemical plant was ordered to shut down due to illegally discharging toxic gases.

When discussing environmental protection, we often mention the issue of greenhouse gas emissions.

This material is not suitable for laser cutting, as it easily produces harmful gases.

As the experiment progressed, the solution inside the reactor began to boil violently and release a large amount of gas.