英:[əprəpɪŋk'wɪtɪ]
美:[əprəpɪŋk'wɪtɪ]
英:[əprəpɪŋk'wɪtɪ]
美:[əprəpɪŋk'wɪtɪ]
noun
nearness, propinquity
ad- + propinquity
1 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;