释义 |
reagent-grade 英ri'ːeɪdʒəntɡr'eɪd美ri'ːeɪdʒəntɡr'eɪd 基本例句 试剂级¹⁰⁰
形容词100% Unless reagent grade sucrose is available use cane sugar.如果没有试剂级的蔗糖,可以用甘蔗糖。 Reagent pure phosphato-tungstic acid was prepared by reacting sodium tungstate with dis-odium hydrogen phosphate and acidifying with hydrochloric acid.由钨酸钠与磷酸氢二钠反应,再经盐酸酸化制得了试剂级的磷钨酸。 |