“pan head”的概念、定义、翻译、参考文献-科学参考

单词	pan head
释义	pan head [`pan ´hed] ^{DESIGN ENGINEERING} The head of a screw or rivet in the shape of a truncated cone.
随便看	sunshine recorder sunshine unit sunspot sunspot cycle sunspot maximum sunspot number sunspot relative number sunstone sun strobe sunstroke sun's way SUn symmetry sun-synchronous orbit Suoidea sup superacid superadditive function thermal mapper thermal metamorphism thermal microphone thermal neutron thermal noise thermal noise generator thermal ohm velocity distribution

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。