gravity concentration
2.EXPERIMENT STUDY ON GRAVITY CONCENTRATION OF THE CELESTINE ORES IN LANPING,YUNNAN PROVINCE
3.A large number of density/concentration conversion tables are stored in the instrument as standard, e.g. °Brix, °Baume, % alcohol, % sulphuric acid, API gravity, etc.
4.Introduction to general ideas in air pollution control, air pollution effects, design of wall collection devices （gravity settlers, centrifugal separators, electrostatic precipitators）, design of dividing collection devices（surface filters, depth filters, scrubbers for particulate control）, design of controlling by concentration and recovery（condensation, adsorption, absorption）, design of controlling by oxidation （combustion, biological oxidation, biofiltration）and the choosing of a control technology.
5.Methods The urine and plasma osmotic pressure,the urine and plasma sodium concentration,urine specific gravity and plasma antidiuretic hormone were measured in patients with DI(30 patients)and CSW(10 patients)secondary to traumatic brain injury.
