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单词 pre-impregnated
释义

pre-impregnatedadj.

Brit. /ˌpriːɪmˈprɛɡneɪtᵻd/, U.S. /ˌpriᵻmˈprɛɡˌneɪdᵻd/
Origin: Formed within English, by derivation. Etymons: pre- prefix, impregnated adj.; pre-impregnate v., -ed suffix1.
Etymology: < pre- prefix + impregnated adj. In later use probably partly also < pre-impregnate v. + -ed suffix1. Compare slightly later pre-impregnation n.
Manufacturing Technology.
Of a material: impregnated with a substance prior to further processing or use; spec. (a) (of paper insulation) impregnated with oil and resin before use in electric cables; (of a cable) containing such insulation; (b) (of reinforcing material) impregnated with synthetic resin before use.
ΘΚΠ
society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [adjective] > impregnated with synthetic resin
pre-impregnated1933
prepreg1954
prepregged1970
society > occupation and work > materials > derived or manufactured material > material for making paper > paper > [adjective] > other types of paper
unsized1794
wire-woven1799
wood-free1904
fireproof1922
pre-impregnated1933
carbonless1935
the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [adjective] > insulated
pre-impregnated1933
1933 Jrnl. Inst. Electr. Engineers 73 353/2 The design conditions are extremely simple as the dielectric depends solely on the use of the pre-impregnated paper, the selection of gas-space dimensions, and the pressure of the gas.
1954 Proc. National Acad. Sci. U.S.A. 40 161 Considerable effort is being expended to see whether pre-impregnated sheets can be placed between forming dies and readily shaped.
1960 Proc. Inst. Electr. Engineers 106 694/1 The pre-impregnated cable does not suffer from this kind of trouble because the paper is dried and impregnated in sheet form before application to the cable.
1998 Paper Focus May 2/3 The £700,000 Kusters Beloit hard bowl calendar, used in the production of pre-impregnated papers, is now fully operational.
2005 Africa News (Nexis) 9 Sept. Pre-impregnated insecticidal nets.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
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adj.1933
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更新时间:2025/1/12 0:22:36