| 单词 | grease cup |
| 释义 | > as lemmasgrease cup grease cup n. = grease-cock n. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > lubricators oil ring1830 grease-cock1839 grease cup1839 needle lubricator1873 oleojector1884 ring oiler1890 1839 R. S. Robinson Naut. Steam Engine Explained 37 Its upper surface forms a grease cup, where melted tallow, or oil, is kept constantly lubricating the piston. < as lemmas |
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