“orientation sub”的概念、定义、翻译、参考文献-科学参考

单词	orientation sub
释义	orientation sub Encyclopedia 工学定向井工具释 orientation sub钻井定向接头为陀螺测斜仪、随钻测斜仪等测量仪器提供固定方向坐放位置的配套工具。
随便看	matrix logarithm matrix manifold matrix manipulation matrix mechanics matrix method matrix minimal polynomial matrix model matrix modifier matrix monotone function matrix multiparticulate sustained release preparations matrix multiplication matrix-multiplication exponent matrix multisplitting method matrix norm matrix normal distribution matrix notation matrix number matrix of a bilinear form matrix of a formula matrix of a linear transformation matrix of a quadratic form matrix of coefficients matrix of connective tissue matrix of dimensions m×n matrix of dripping pills

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。