| 单词 |
permeator |
| 释义 |
permeator|ˈpɜːmiːeɪtə(r)|
[a. L. permeator, f. permeāre (see permeate v.).]
1. One who or that which permeates; in quot. 1944, ? an infiltrator.
1944G. B. Shaw Everybody's Pol. What's What? xxxi. 271, I, a Fabian permeator, knew the questions and had doctrinaire answers ready for some of them. 1969Ann. Rev. Plant Physiol. XX. 602 Wartiovaara..compared the permeability constants of homologue series of permeators (e.g., alcohols..) and concluded that two parallel and alternative pathways for permeation of molecules through the protoplasm did not exist. Ibid., The breaking of hydrogen bonds between permeator molecule and water during the passage of the permeator through the membrane is considered to be the important feature.
2. A vessel divided into two by a semi-permeable membrane, used in the large-scale removal of solutes from a liquid by reverse osmosis.
1975M. J. Hammer Water & Waste-Water Technol. vii. 266 In addition to the permeators, a basic reverse osmosis system consists of pretreatment pumps.., tanks and appurtenances for cleaning and flushing, and a disposal system for waste brine. Ibid. (caption) A module of 24 reverse-osmosis permeator units used to desalt a municipal ground-water supply. 1977Design Engin. July 6/3 A new high-capacity permeator..can convert thousands of gallons of seawater into potable water every day. |
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
相关内容：
相关热词搜索：permeator英英词典英英释义英语词汇意思用法释义英语
单词 valedictorian 释义 valedictorian n (US) student giving a valedictory 致告别辞的毕业生......