The experiments show that the normal pressure two-section acid hydrolysis is obviously superior to concentrated acid hydrolysis.

结果显示常压两段酸水解工艺的效果明显优于浓酸水解。

youdao

The main equipment such as stainless steel converter, fire tube boiler, main blower and concentrated acid pumps were made at home.

主要设备，如不锈钢转化器、火管锅炉、主鼓风机、浓硫酸泵等均为国产。

youdao

The acid stocking unit is used to mix water and concentrated acid in order to maintain the acidity of the detergent throughout the process of cleaning.

酸性溶液存贮单元是用以将水和酸性浓缩液混合至固定浓度并在整个清洗循环中保持于此浓度。

youdao

Sergei Filin, 43, was approaching his home around midnight Thursday when the unidentified attacker flung the concentrated acid at him, causing severe burns to his face, the state-run news agency RIA Novosti reported Friday.

CNN: STORY HIGHLIGHTS

The operators of the plant are also being prosecuted over a leak of concentrated nitric acid on 11 March last year, which injured two employees.

BBC: Sellafield: We're safe

Walking through his lab a decade ago, he had an epiphany: He envisioned an entire process by which he could feed corn sugar to lactobacilli that would exude ideal, highly concentrated lactic acid.

FORBES: Shucking Petroleum