In the teaching of Probability in senior high school lie obvious inadequacies in students' comprehension of Probability definition for Frequency and Equiprobability models.
The calculations of the strength,stiffness and steamtight are very importang when high pressure and intermediate pressure casing of 300 MW steam turbine are designed.
By simulated test, the co-relationship among the slip granulometric composition, slurry deflocculation curve, mid-high pressure casting forming speed and green body shaping endurance is studied.
The family had undergone great hardship to let him attend senior high school in county town, which meant a big fellow was consuming food without earning any workpoint.
Cabezon C, Vigil P, Rojas I, Leiva ME, Riquelme R, Aranda W, Garcia C.Adolescent pregnancy prevention: An abstinence-centered randomized controlled intervention in a Chilean public high school.