- lubricating pipe
- 润滑油管
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
William Helmore — Ph.D., M.S., F.C.S. [Proceedings of the Chemical Society. May 1936.] , F.R.Ae.S., CBE [ [http://www.gazettes online.co.uk/ViewPDF.aspx?pdf=35586 geotype=London gpn=2489 type=ArchivedIssuePage all=helmore exact= atleast= similar= London Gazette… … Wikipedia
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