“dragline excavator”的概念、定义、翻译、参考文献-科学参考

单词	dragline excavator
释义	dragline excavator [`drag´līn `eks·kǝ´vād·ǝr] See <<dragline>>
随便看	needle beam needle bearing needle blow needle board needle coal needle dam needle file needle gap needle ice needle nozzle needle ore needlepoint lace needle scratch needle test point needle tubing needle valve needle weir needling need-to-know neem oil neencephalon negation negative negative acceleration negative acknowledgement

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