“ballast bed”概念、定义、翻译-科学时代

单词	ballast bed
释义	环境科学与工程词汇手册 ballast bed 石碴道床；道碴路基
随便看	vector function vector function vector function vector generator vector geographic information system vector graphics vector graphics vector graphics vector gravimetry vectorial angle vectorial coordinates vectorial photoelectric effect vectorial photoelectric effect vectorial summation vector image vectoring vectoring nozzle vector interrupt vectorization vectorization vectorization vectorization vectorized Monte Carlo method vector lattice vector locus plot

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。