appropinquity
n. 接近
例句
The hardness of the alloys which is modified is advanced by about 50%, appropinquity HB84.9.
复合变质处理使该合金中硅相细化，使布氏硬度提高50%，硬度可达 HB84.9。
The hardness of the alloys which is modified is advanced by about 50%, appropinquity HB84.9;
复合变质处理使该合金中硅相细化，使布氏硬度提高50%，硬度可达HB84.9；
