共 50 条
- [21] PREPARATION OF HIGH-PURITY SUBSTANCES [J]. ZHURNAL NEORGANICHESKOI KHIMII, 1962, 7 (05): : 960 - 962
- [23] ANALYSIS OF HIGH-PURITY SUBSTANCES [J]. JOURNAL OF ANALYTICAL CHEMISTRY, 1992, 47 (09) : 1148 - 1154
- [26] PRODUCTION OF HIGH-PURITY HYDROGEN [J]. ERDOL & KOHLE ERDGAS PETROCHEMIE, 1974, 27 (08): : 408 - 410
- [27] HIGH-PURITY TIN POWDERS [J]. SOVIET POWDER METALLURGY AND METAL CERAMICS, 1987, 26 (11): : 867 - 869