technical. A rest for the shank of a punch or drill: see quots. Now dialect.
| 单词 | θ212305 |
| 释义 | society > occupation and work > equipment > piercing or boring tools > [noun] > drill > other drill parts or attachments (5) tache1683 technical. A rest for the shank of a punch or drill: see quots. Now dialect. temper-screw1865 a set-screw for adjustment; esp. in boring, a screw-connection for automatically adjusting the drill as the boring proceeds. sub1875 spec. Mechanics. In well-boring: a short section of pipe, tube, etc., used as adaptor to join two sections in a drill string; = substitute, n. 8. substitute1875 Mechanics. In well-boring: a short section of pipe, tube, or drill collar that is threaded on both ends, used as an adaptor to connect two sections… stem1880 Applied to various objects resembling the stem of a plant or of a flower, etc. (Cf. stalk, n.1 4 5.) More fully drill stem: (a) (also auger stem) in… |
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