= vacuum grease n.
单词 | θ102755 |
释义 | 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 (2) vacuum wax1926 = vacuum grease n. vacuum grease1946 a grease which because of its low vapour pressure is suitable for sealing joints in a vacuum apparatus. |
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