“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	Social Welfare Service social welfare service delivery social welfare service voucher social welfare socialization theory social welfare statistics social well-being Social Work social work social work effectiveness evaluation social worker social worker roles social work ethics social work evaluation social work for children social work for youth social work function Social Work in Canada social work localization social work methods social work practice social work practice theory social work process social work profession social work professional course system social work professionalism

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。