Oxygen demand is the amount of oxygen consumed during the decomposition of organic matter into simple, stable inorganic matter by microorganisms. Aerobic organics are substances in
Sep 07, 2022
Self purification refers to the phenomenon that the contaminated object is purified or harmless through its own action. It is divided into environmental self-purification, water se
Polybutylene terephthalate (PBT) is a thermoplastic polyester. Compared with other thermoplastic engineering plastics, non-reinforced PBT has better processability and electrical p
Sep 05, 2022
Polyoxymethylene (POM) is an engineering plastic with excellent performance, which is known as "Duogang" and "Super Steel" in foreign countries. POM has metal-l
Vinylidene chloride is an organic compound with the molecular formula C2H2Cl2. Under normal temperature and pressure, it is a colorless liquid with a special odor, easy to gasify,
Sep 02, 2022
High-barrier packaging, that is, packaging materials with high-barrier properties, application and development of industrialized or industrialized production prospects of barrier m
Equilibrium distillation is a single stage distillation operation. When performing equilibrium distillation in a unipolar kettle, the liquid mixture in the kettle is partially vapo
Sep 01, 2022
Distillation is a thermodynamic separation process, which utilizes the different boiling points of each component in a mixed liquid or liquid-solid system to evaporate the low-boil
The dielectric loss angle is also called the dielectric phase angle. It is the ratio of the active component and the reactive component in the dielectric under the alternating volt
Aug 31, 2022
Partial discharge phenomenon mainly refers to high-voltage electrical equipment. According to power grid statistics, partial discharge is an important reason for the final insulati
Transition resistance is a transient state resistance. When the electrical equipment is short-circuited between phases or relative to the ground, the short-circuit current flows fr
The power line is mainly used for industrial electrical appliances, electric motors, electric welding machines, machine tools, industrial fans, etc. The characteristic is that the
