Mechanical sensitiveness refers to the degree of difficulty of explosives to explode under mechanical action. When explosives are produced, transported and used, some mechanical im
Apr 15, 2022
Symbiotic nitrogen-fixing microorganisms can fix molecular nitrogen in the air only when they are mutually beneficial with plants. Symbiotic nitrogen-fixing microorganisms can be d
Apr 14, 2022
Biological nitrogen fixation refers to the process by which nitrogen-fixing microorganisms reduce nitrogen in the atmosphere to ammonia. Nitrogen-fixing organisms belong to individ
The impact absorption energy is the energy required to generate two new free surfaces and a part of the volume plastic deformation when a notched specimen with a specified shape an
Apr 13, 2022
Brittleness refers to the property that a material only produces a small deformation under the action of external force (such as tensile, impact, etc.), that is, fracture failure.
Chromatographically pure reagents refer to standard reagents used in chromatographic analysis. Under chromatographic conditions, only the peaks of the specified compounds appear, a
Apr 12, 2022
Classification of analytical reagents Generally, it is divided into general reagents, high-purity reagents, analytical reagents, instrumental analytical reagents, clinical diagnost
A measurement system is a collection of instruments or gauges, standards, operations, methods, fixtures, software, personnel, environments, and assumptions used to quantitatively m
Apr 11, 2022
Phase noise refers to the random changes in the phase of the system output signal caused by the system under the action of various noises. It is an important indicator to measure t
Electrochemical equivalent refers to the amount of electrolysis products produced by 1 coulomb of electricity. The relationship between the amount of electrolysis product and the a
Apr 09, 2022
Hydroxyl radical is an important reactive oxygen species, which is formed by the loss of an electron from the hydroxide radical. Hydroxyl free radicals have a very strong electron-
Condensing agent features 1. The flocs are formed quickly, with good activity and good filterability. 2. There is no need to add alkaline additives. In case of deliquescence, the e
Apr 08, 2022
