| 单词 | shatter crack |
| 释义 | > as lemmasshatter crack shatter crack n. Metallurgy (see quot. 1958). ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > qualities of metals > [noun] > imperfections honeycomb1530 roll mark1894 hair crack1896 season crack1909 season cracking1910 snowflake1919 hairline crack1923 shrinkage cavity1923 clink1925 shatter crack1930 stretcher strain1931 pimpling1940 stringer1942 quench cracking1949 1930 Jrnl. Iron & Steel Inst. 121 703 Rapid cooling through the secondary brittle range is believed to cause the formation of shatter cracks in rails showing secondary brittleness. 1958 A. D. Merriman Dict. Metall. 315/2 Shatter cracks, a name used in reference to fine internal fissures, particularly when found in the heads of steel rails. The cracks lie at random in all directions and occur most frequently in large steel forgings. < as lemmas |
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