What does asa mean?

Asa has many meanings, namely: ASA plastic, analog feature analysis, modified resin, photographic sensitivity, axiom of proving congruence in mathematics, computer global application documents, financial institutions, American Anesthesia Association, African and Nigerian female singers.

1, ASA (English name: acrylic copolymer), an engineering plastic, is a graft copolymer of acrylate rubber, acrylonitrile and styrene. The molding temperature is 170-230℃. ASA resin is mainly produced by blending technology. The main raw materials are ASA powder and AS resin, pigments, antioxidants, internal and external lubricants, etc.

2. Analog characteristic analysis refers to providing a safe and low-power scanning driving voltage signal for each pin of the component, thus generating an impedance characteristic diagram and displaying it on CRT, and storing it for comparison. All tests are carried out under static state (no power supply), so the components will not be damaged. It can not only quickly scan and store the V/I curves of various IC pins, but also be effective for various discrete components such as resistors and capacitors.

3.ASA is a terpolymer composed of acrylonitrile, styrene and acrylate rubber, which belongs to impact modified resin and was successfully developed in 1970s. ASA is the main product of GE Plastics, a subsidiary of General Electric (GE). In August, 2002, ASA, as a raw material for * * * extrusion, was introduced into the pvc color * * * extrusion profile market in China with the registered trademark of Geloy.

4. In the field of photography, ASA stands for sensitivity and is an American standard. We can simply think that ASA is equivalent to ISO. Sensitivity is the speed of film exposure and one of the factors that determine photographic exposure. In the past, countries around the world expressed sensitivity in different ways and formed different systems.

5. One of the proof methods of congruent triangles's axiom "triangle congruence": the triangle congruence with two angles corresponding to its sides. A is an angle and s is an edge. The abbreviation is "A.S.A" or "corner".

6.asa is a global application file of ASP. It mainly defines the Session object and the Application object, and the corresponding events.

7.ASA is the largest and most efficient microfinance financial institution in the world, with more than 3,000 branches in North America, Europe, Asia and Africa, more than 24,000 employees and more than 600 million customers, ranking first in Forbes' list of global microfinance institutions.

8.asa is the abbreviation of American Association of Anesthesiologists (ASA), also known as American Association of Anesthesiologists or American Association of Anesthesiologists.

9. Asa is an African and Nigerian female singer. Born in Paris, France, her albums include Seeds of Love, Prisoner, Assa and Beautiful Imperfection.

References:

Baidu Encyclopedia -—asa