“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	siderose siderosilicosis siderosis siderosphere siderostat siderotil side shot side slope side spray side stream sidestream sidestream stripper sideswipe side-tipping loader sidetone sidetone level sidetone ranging sidetrack sidetracking sidewalk side-wall sampling sideways feed Sidewinder siding SIDS

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。