“percussion mark”的概念、定义、翻译、参考文献-科学参考

单词	percussion mark
释义	percussion mark [pǝr`kǝsh·ǝn ´märk] ^GEOLOGY A small, crescent-shaped scar produced on a hard, dense pebble by a blow.
随便看	precipitation number precipitation physics precipitation static precipitation station precipitation titration precipitation trails precipitation trajectory precipitator precipitin test precipitous terrain precision precision adjustment precision approach radar precision attribute precision-balanced hybrid circuit precision block precision bombing precision casting precision depth recorder precision fire precision graphic recorder precision grinding precision net precision sweep precoat

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。