/,spesɪfɪ'keɪʃn; ,spɛsəfə`keʃən/
n
1 [C esp pl 尤作复数] details and instructions describing the design, materials, etc of sth to be made or done 规格; 规格说明
*specifications for (building) a garage （建造）车房的规格说明
* the technical specifications of a new car 新汽车的技术规格.
2 [U] action of specifying 具体说明; 详述
*the specification of details 细节的详述.

n[C]
[usually plural]
a detailed instruction about how a car, building, piece of equipment etc should be made
build/manufacture/produce sth to ... specifications
　The airport building had been constructed to FAA specifications.
　The bolts met all the engineering specifications .
especially BrE a clear statement of what is needed or wanted
　a specification of what role each member will play
job specification
(=a detailed description of what a job involves)