“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	phase portrait phase quadrature phaser phase ratio phase resonance phase response phase reversal phase reversal modulation phase-rotation relay phase rule phase-sequence relay phase shift phase-shift circuit phase-shift control phase-shift discriminator phase shifter phase-shifting transformer phase-shift keying phase-shift mutation phase-shift oscillator phase solubility phase-solubility analysis phase space phase speed phase splitter

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。