The distributed air-defense C3I system is divided into system-level、subsystem-level and workstation-level, and the structure model of system is established.

The application of melamine phosphate as filler in the insulating layer on a rocket propellant charge, mechanism of its action, its protection mode against fire, its compatibility with the insulating layer matrix and its other advantages were introduced.

Discussion on the “three wastes” pollution of coal development and control pattern in Shanxi province;

Control effect and economic benefit analysis of four control patterns on rice main insect pests;