| 单词 |
pre-stretch |
| 释义 |
pre-ˈstretch, v. Building. [pre- A. 1.] = pre-tension v. Hence pre-ˈstretched ppl. a.; pre-ˈstretching vbl. n.
1936Structural Engineer XIV. 251/1 By inducing tension in the reinforcement one secures..a decrease of the tension produced in the concrete by the shearing process, or even its total suppression if the reinforcement is pre-stretched in two directions. 1941Concrete & Constructional Engin. XXXVI. 93/1 M. Freyssinet's device with pre-stretched wires needs no anchorage for the manufacture of a long row of articles after one stretching operation. 1946Ibid. XLI. 147 With pre-stretching the member has to remain in the mould until the stretching force, produced by tensioning of the reinforcement.., can safely be transmitted to the concrete. 1949[see post-stretching vbl. n.]. 1965E. C. Hiscock Cruising under Sail (ed. 2) v. 79 Terylene..is..more suitable for halyards and headsail sheets; but for those purposes Marlow Ropes Ltd. make a pre-stretched three-strand rope. |

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