“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	proton capture proton drip-line proton-electron-proton reaction protonema protonephridium protonic acid proton-induced x-ray emission protonium proton magnetometer proton microscope proton moment proton number proton-proton chain proton-proton reaction proton-proton scattering proton-recoil counter proton resonance proton-rich nucleus proton scattering microscope proton stability constant proton storage ring proton synchrotron proton vector magnetometer protophilic protophloem

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。