A

Alloy:

两种或两种以上金属元素的组合。

Alternating Current:

Current in which the charge-flow periodically and regularly reverses in a cyclic manner.

American Society for Testing Materials (ASTM):

 An organization that tests materials and attempts to set standards on various materials for industry.

Ampere (A):

The unit expressing the rate of flow of an electrical current. One ampere is the current flowing through one ohm of resistance at one volt potential.

Annealing:

The process of heating to and holding at a suitable temperature and then cooling at a suitable rate, for such purposes as reducing hardness, improving machinability, facilitating cold working, producing a desired micro-structure or obtaining desired physical, mechanical or other properties.

Anodizing:

An electrolytic process for producing a protective or decorative film on certain metals chiefly aluminum and magnesium.

ARIB:

An acronym for Association of Radio Industry Broadcasters, a standards organization in Japan.

AWG:

Abbreviation for American Wire Gauge, a measure of the size or diameter of a wire or conductor.