“positive derail”的概念、定义、翻译、参考文献-科学参考

单词	positive derail
释义	positive derail [`päz·ǝd·iv di`rāl] ^{MINING ENGINEERING} A device installed in or on a mine track to derail runaway cars or trips.
随便看	lindstromite LINE line linea alba lineage lineage structure lineament line-and-staff organization line and trunk group linear linear accelerator linear accelerator breeder linear accelerator-driven reactor linear accelerator-regenerator reactor linear actuator linear algebra linear algebraic equation linear amplifier linear array linear-array camera linear birefringence linear bounded automaton linear burning rate linear circuit linear cleavage

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