4) low-concentration HCl
低浓度盐酸
5) extremely low acid
极低浓度酸
1.
Cellulose hydrolysis under the catalysis of extremely low acid (ELA) was conducted at high temperature(215℃) with a batch reactor, producing quite a number of reducing sugars and many other chemicals.
阐述了生物质水解的研究背景和发展现状,并在间歇反应器上,对极低浓度酸条件下纤维素的水解进行了研究。
6) low sulfuric acid concentration
低硫酸浓度
补充资料：低都儿低
1.低而又低，很低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条