magnetic levitation; a technology that uses magnetic forces to suspend objects in the air; often refers to maglev trains

a mixture in which small solid particles are dispersed throughout a liquid or gas without dissolving

tiny particles suspended in a fluid that neither dissolve nor settle

The total amount of solid or liquid particles suspended in the air or water that do not easily settle; its concentration in the air is a key indicator for monitoring air quality.

fine airborne particles with a diameter of 2.5 micrometers or less, also known as PM2.5

Particulate matter or tiny particles suspended in the air or water; specifically refers to air pollutants such as dust or exhaust that are small enough to be inhaled into the lungs. In mainland China, this is often called [[可吸入颗粒物|可吸入顆粒物|ke3 xi1 ru4 ke1 li4 wu4]].

(computing) a user interface element that floats above the main application or screen

A high-speed train that uses magnetic forces to float above and move along a track, providing a quiet and fast ride; also known as [[磁浮列车|磁浮列車|ci2 fu2 lie4 che1]]