| 单词 | vacuum grease |
| 释义 | > as lemmasvacuum grease vacuum grease n. a grease which because of its low vapour pressure is suitable for sealing joints in a vacuum apparatus. ΘΚΠ the world > space > relative position > closed or shut condition > that which or one who closes or shuts > [noun] > that which closes an aperture > means of preventing passage of gas or liquid > substance > specific vacuum wax1926 vacuum grease1946 1946 Jrnl. Royal Aeronaut. Soc. 50 393 Connection to the vacuum system is made by a ground metal joint sealed with vacuum grease. 1977 Vacuum 27 431/1 There are three factors involved in choosing a vacuum grease—cost, convenience, and its effect on the vacuum system. < as lemmas |
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