“arch blocks”的概念、定义、翻译、参考文献-科学参考

单词	arch blocks
释义	arch blocks [`ärch ´bläks] ^{MINING ENGINEERING} Blocks applied to the wooden voussoirs used in framing a timber support for the roof when driving a tunnel.
随便看	Dirac quantization Dirac sea Dirac spinor Dirac theory Dirac wave function direct access direct-access library direct-access memory direct-access method direct-access storage direct-access storage device direct-acting pump direct-acting recorder direct address direct-address processing direct air cycle direct allocation direct-aperture antenna direct-arc furnace direct-band-gap semiconductor direct bearing direct-bonded bearing direct broadcasting satellite system direct broadcast radio satellite direct cell

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。