“workover derrick”的概念、定义、翻译、参考文献-科学参考

单词	workover derrick
释义	workover derrick Encyclopedia 工学修井井架释 workover derrick修井井架用于安放天车、游车等吊升系统设备和工具，并用以起下和存放钻具的钢架结构。
随便看	hexagonal boron nitride hexagonal close-packed structure HCP structure hexagonal close packing hexagonal closure condition hexagonal crystal system hexagonal dipyramid hexagonal grid hexagonality closure condition hexagonal lattice hexagonal net hexagonal nomogram hexagonal number hexagonal nut hexagonal phase hexagonal prism hexagonal pyramid hexagonal pyramidal number hexagonal scalenohedron hexagonal square number hexagonal-square roll pass sequence hexagonal system hexagonal web hexagon pattern hexagon tiling hexagram

科学参考收录了854744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。