Cliometrics enables the mainstream economics and the science of economic history to unite,and captures the characteristics of both history and economics.
Odorization pumps are specially designed diaphragm plunger metering pump, plunger travel of the exercise machine lock, each time to maintain a constant output.
The paper expounds in detail the relation between oil density and metering and suggests that it is necessary to propagand metrical knowledge to customers.
For electrical properties of MOS capacitors, the C-V curves were obtained by LCR meter (HP4284A), and picoampere meter (HP4140B) was used to measure the J-V curves.
This paper described the basic concept and expressions of the decibel and Neper. It also explained some merits of the calculation rntes and Application ranges of the measuremeut Units.
A lot of epidemiology consider to discover, expose in more than 2 fine long hair gauss (electromagnetic wave unit of measurement) the person in magnetic field, meet with cancered risk is higher.
In the presence of impurities or in a nonstoichiometric solid, free electrons or electron holes are produced as a result of “charge compensation” to neutralize the effect of charged ionic defects 。