| 单词 | piston packing |
| 释义 | > as lemmaspiston packing piston packing n. (a) any material used for filling the space between a piston head and the cylinder within which it moves, so as to prevent steam, air, etc., leaking out; (b) a mechanical device for inserting such packing material around a piston head. ΘΚΠ society > occupation and work > materials > types of material generally > [noun] > material for other specific purposes screen cloth1603 wadding1627 heading1650 fusive1678 graving stuff1702 pounce1728 railing1740 retarder1753 seating1790 shelving1817 bending1823 shafting1825 wedging1825 rubber sheet1842 facing1843 piston packing1857 sheathing1859 screeding1864 paint1875 sleeving1923 landfill1969 presoak1969 the world > space > relative position > closed or shut condition > that which or one who closes or shuts > [noun] > that which closes an aperture > material or composition used for > for specific purpose piston packing1857 well packing1865 1857 Sci. Amer. 19 Sept. 10/2 The springs..are possessed of the following characteristics which distinguish them from the ordinary piston packing, viz., that they are elastic in the direction of their circumference, and not, as usually, in the direction of their diameter. 1890 Cent. Dict. Piston-packing... 2. A mechanical device for packing pistons, in which the operation depends more upon the construction than upon the fibrous, plastic, or compressible properties of the packing-material. 2002 Wood & Wood Products (Nexis) 1 Nov. 97 Self-adjusting, spring loaded throat and piston packings. < as lemmas |
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