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单词 post-stretching
释义

post-stretchingn.

Brit. /ˈpəʊs(t)ˌstrɛtʃɪŋ/, U.S. /ˈpoʊs(t)ˌstrɛtʃɪŋ/
Origin: Formed within English, by derivation. Etymons: post- prefix, stretching n.
Etymology: < post- prefix + stretching n., after post-stretch v.
Building and Engineering. Now rare.
= post-tensioning n.
ΘΚΠ
society > occupation and work > industry > building or constructing > [noun] > tensioning or stretching components
prestressing1934
pre-tensioning1936
post-stretching1946
prestretching1946
post-tensioning1948
1946 Concrete & Constructional Engin. 41 147 Post-stretching is carried out against the hardened concrete, no immediate loss owing to elastic deformation of the concrete occurring, and that owing to shrinkage being reduced.
1949 P. W. Abeles Princ. & Pract. Prestressed Concrete xii. 92/1 Two kinds of transfer of prestress can be distinguished:—(a) instantaneous release of prestress by severing wires, previously tensioned independently of the members to be prestressed, a process which is called ‘pretensioning’ or ‘pre-stretching’, and (b) gradual release of the prestress by tensioning the wires directly against the hardened body of the member to be prestressed, a process which is called ‘post-tensioning’ or ‘post-stretching’.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).
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n.1946
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