“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	ophthalmologist ophthalmology ophthalmomalacia ophthalmometer ophthalmorrhexis ophthalmoscope opianyl opiate Opilioacaridae Opilioacariformes opine opisometer opisthaptor Opisthobranchia Opisthocoela opisthocoelous Opisthocomidae opisthocranion opisthognathous opisthonephros Opisthopora opisthotic opisthotonus opium opoka

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。