“pilot-heading excavating method”的概念、定义、翻译、参考文献-科学参考

单词	pilot-heading excavating method
释义	pilot-heading excavating method Encyclopedia 工学硐室掘进释 pilot-heading excavating method导硐掘进法硐室岩层不够稳定时，采用先掘进小断面导硐，然后逐次扩大并砌碹的施工方法。
随便看	power control unit power conversion power conversion efficiency power conversion system power convertor power counting power curve power-delay product power density power [density] spectrum power density spectrum power-difference prime power dilation power dispatching office building power dispatching of urban rail transit power dissipation power distribution network power dividers power-driven system powered by landscape architechture facilities powered decending of helicopter powered flight powered-flight phase powered paraglider power efficiency

科学参考收录了854744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。