The authors have the following ideas: nagging words are usually regarded as failed communicative words not only because they seriously depart from the Quantity maxim,Relation maxim and Manner maxim of Grice s Cooperative Principle(CP);also because they depart from the Tact maxim and Approbation maxim of Leech s Polite Principle when they are regarded as the Competitive Illocuti.

Lexical deviation and semantic deviation,the two types of deviation most frequently employed in advertising English,practically flout Manner Maxim and Quality Maxim in Cooperative Principle in order to force the target audience to make pragmatic implicature.

Based on a definition of preliminary internal force, a simple computation method of prestressed space truss is put forward in this paper by means of establishing a criterion equation of preliminary internal force.

Based on the method of dimensional analysis,the criterion equation of flow of gas/liquid two-phase flow through multicup isoflux gas anchor is established.

s: Based on similarity theory and the method of dimensional analysis, the criterion equation of flow of PAM aqueous solution in concentric annuli with isometric ring slots on the inner cylinder is established.

By using optimum method and computer programing,this paper processes and calculates the data so that the convective heat exchange criterion equations of tubular cooler in air side and water side of three wa.

A criterion formula is suggested.

In those Northern stories taking Alaska as the background,northland code is a series of ideal codes of action and morality as well as an aesthetic and value system emphasizing the code of survival of the fittest.