“headtree”的概念、定义、翻译、参考文献-科学参考

单词	headtree
释义	headtree [`hed´trē] ^{MINING ENGINEERING} The horizontal timber placed at each side of a rectangular heading to support the headboard.
随便看	docosanoic acid docosapentanoic acid doctor doctor bar doctor blade doctor knife doctor roll doctor solution doctor test doctor treatment document document alignment documentation document flow document handling document leading edge document mark document misregistration document number document plane document platen document processing document reader document reference edge docuterm

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。