单词 | valve head |
释义 | > as lemmasvalve head valve head n. Mechanics the part of a lift valve that is lifted off the valve aperture to open the valve. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > parts of > valves > part of valve head1904 1904 A. B. F. Young Compl. Motorist (ed. 2) iv. 91 The valve-head is provided with a slot for the insertion of a tool for grinding purposes. 1971 B. Scharf Engin. & its Lang. xii. 176 One also differentiates between ordinary, high lift and full lift safety and relief valves according to the distance by which the valve head is automatically raised. < as lemmas |
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