Based on the quantitative analysis and linking to the combat command, it presents the tactical application principles of muti-vessel cross location using the ship-borne microwave OTH radar.

The application principles of the guiding and discoveing method to the course of higher mathematics are discussed, the examples are given.

This paper introduces the color-leaved tree species and the sorts of the color-leaved tree species and their application principles, expounds the application modes of the color-leaved tree species in the urban landscape, and lists some common color-leaved tree species in the northern regions of China.

Finally,the concrete application principle of on-line icing monitoring devices was given.

Ocean acoustic field prediction and tactical application;

And then a tactical application model of maritime smoke generating barrel is put forward according to simulation results.

According to threat object,engagement mode, etc, then it’s main performance of tactical application is discussed, and the practicability, validity and improvement of UV MAWS based on it’s capability for high speed fixed-wing fighter are analysed.