| 单词 | rock bolt |
| 释义 | > as lemmasrock bolt rock bolt n. a bolt for attaching something to rock; (Mining) a tensioned rod passing through a bed of rock and anchoring it to the body of rock behind; cf. roof bolt n. at roof n. Compounds 3. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > bolt > types of round bolt1582 ringbolt1599 pikebolt1622 rag bolt1625 set-bolt1627 clinch-bolta1642 eyebolt1649 clinch1659 screw-bolt1690 king bolt1740 wrain-bolt1750 wraining-bolt1769 toggle-bolt1794 strap-bolt1795 wring-bolt1815 through-bolt1821 truss-bolt1825 slip-stopper1831 stud bolt1838 anchor bolt1839 king rod1843 joint bolt1844 spade-bolt1850 shackle-bolt1852 roof bolt1853 set-stud1855 coach bolt1869 truss-rod1873 fox-bolt1874 garnish-bolt1874 fang-bolt1876 stud1878 U bolta1884 rock bolt1887 hook bolt1899 tower bolt1911 explosive bolt1948 1887 U.S. Patent 370,119 2/2 Which track is by rock-bolts u passed through lugs u′ of said track into the stone..rigidly fixed upon said stone. 1957 Q. Colorado School Mines July 235 Because of their increasingly extensive use in non-coal mines, we prefer to call these devices ‘rock’ rather than ‘roof’ bolts and will refer to them as such. 2001 Northern Ont.: Uncover Business Opportunities 17 May 17 (caption) A miner installs screens and rockbolts to the rock ceiling in a Sudbury-area mine. < as lemmas |
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