“ruler”的概念、定义、翻译、参考文献-科学参考

单词	ruler
释义	ruler [`rül·ǝr] ^ENGINEERING A graduated strip of wood, metal, or other material, used to measure lines or as a guide in drawing lines.
随便看	single-instruction-stream, single-data-stream single-J groove weld single-keyboard point-of-sale system single knock-on single-layer bit single-layer solenoid single-length single lens single-loop feedback single-loop servomechanism single packing single-pass weld single-path system single-perforated grain single-phase single-phase circuit single-phase flow single-phase meter single-phase motor single-phase rectifier single-photon-emission computed tomography single-piece milling single-point grounding single-point tool single-polarity pulse

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。