character formula
2.By May 1928, however, basic principles of guerrilla warfare, simple in nature and suited to the conditions of the time, had already been evolved, that is, the sixteen-character formula: "The enemy advances, we retreat; the enemy camps, we harass; the enemy tires, we attack; the enemy retreats, we pursue." 
3.This marked a new stage in the development of our military principles, which were greatly enriched in content and underwent many changes in form, mainly in the sense that although they basically remained the same as in the sixteen-character formula, they transcended their originally simple nature.
8.Through years of practice in Huanghua Lough,a set of static cone penetration test formula has been obtained for vacuum preloading foundation in soft soil area by researching on the correlativity among cone point resistance,physico-mechanical indexes in 11 projects. The set of formula has important reference sense to calculate the foundation bearing capacity,modulus of compressibility,undrained shear strength,ultimate side resistance of pile,and to assess the character of vacuum preloading foundation in soft soil area.
9.Morphine injection from extradural cavity、subarachnoid cavity、ventricle of cerebrum can have an obvious effect in treating intractable pain resulting from cancer by binding its receptor in spinal cord and centra with reduced dosage and side effect.This article reviews this drug about its usage,quantitative titration formula in theory and pharmacokinetic character.
