reciprocity GRE专八

1.reciprocity calibration

互易校正

2.Reciprocity includes more than gifts and favors; it also applies to concessions that people make to one another.

互惠不仅仅包括礼和优待；它对人们之间互相作出让步也同样适用。

3.The causes that produce these differences chiefly lie in structure of peregal O and reciprocity between colors and peregal O.

这些差异主要是由于助剂本身结构及其与染料相互作用引起。

4.Because of its inherent sociality, reciprocity and modulability, the social security forms a stable mechanism of modern society.

社会保障由于其内在社会性、互济性、调节性，构成了现代社会稳定机制。