“positive lens”的概念、定义、翻译、参考文献-科学参考

单词	positive lens
释义	positive lens [`päz·ǝd·iv ´lenz] See <<converging lens>>
随便看	principle of the minimum principle of uniformity principle of virtual work print printability gage print driver printed circuit printed circuit board printed-wiring armature printer printer file printer's point print film print hammer sheet crack sheet deposit sheet drift sheeted fissure sheeted vein sheeted zone sheet erosion sheet-fed press sheet feeder sheet film sheetflood

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。