While there are a number of different ways that astronomers infer the existence of exoplanets, NASA's Kepler mission USES what's known as the transit method.

Based on the principle of period transit method, semi-period transit method of collimation is proposed to improve the north-seeking speed and the automatic degree.

Integral lifting main body of a shield machine is a quick and simple shield machine transit method through subway stations, and can save subway station construction costs.