| 释义 |
- 氢氧化钠：一种白色脆性固体NaOH，是一种强碱性腐蚀剂，尤其用于制造肥皂、人造丝和纸张。
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机械工程 氢氧化钠 The optimal modification conditions were obtained:modifier 15 g/L,sodium hydroxide 20 g/L,modification temperature 60 ℃;modification time 40 minutes. 得到的最佳改性工艺条件为:改性剂15 g/L;氢氧化钠20 g/L;改性温度60℃;时间40分钟。
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环境科学技术 氢氧化钠 In this research, the biomass was pretreated by sodium hydroxide (NaOH), ammonia and sulfuric acid (H2SO4), respectively. 本研究中,分别采用氢氧化钠、氨水、硫酸对芨芨草进行预处理。
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The test demonstrates that alkali carbonates, alkali hydroxides and a combination of sodium carbonate with ferriferrous oxide all exhibit approximate catalytic activity. 试验证明：碱金属碳酸盐，碱金属氢氧化物和碳酸钠同四氧化三铁的复合剂，都表现出相接近的催化活性。
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