Based on th e aspects such as the principle of allotting essential factors of production;the principle of having priority in efficiency,and giving consderation to the fair, the strategy of"Adjust higher income,enlarge the proportion of average income,a nd improve the income level of the lower income,this p.

In this paper,the abrasion of central division cone in the radial dense-thin swirl pulverized coal burner is studied by a cold optimize experiment carried at a single-phase experimental platform.

If a finite dimension Lie algebra g of Char2 has nontrivial 2-cocycle,then we give two central extensions of loop algebra for Lie aldebra g.

In this paper,we study the central extensions of the Lie algebra of skew derivations for the quantum torus,and renew construct L^,make it the universal central extension of L,and give more simplified proof of the results than Lin(who prove that results directly[1]).

The simple Lie algebra W(Z,Z) over complex field C is studied,by verifing a bilinear function f on L to be equivalent to a 2-cocycle h on L,the most important central extension of the simple Lie algebra W(Z,Z) over complex field C are given.

Multi-interrupt expanded, FIFO of TL16C754 and read/write timing control technology of design of communication interface with multi-serial interface and multi-interrupt.

A fast and accurate multigroup neutron diffusion calculation method was established for reactor core,and the semi-analytic nodal method(SANM) based on transverse-integrated diffusion equation was introduced within the framework of the analytic coarse mesh finite difference(ACMFD) formulation.