“direct positive”的概念、定义、翻译、参考文献-科学参考

单词	direct positive
释义	direct positive [dǝ¦rekt `päz·ǝd·iv] ^{GRAPHIC ARTS} A photographic positive made by exposure to light and developed without a negative.
随便看	east-west effect easy easy glide Eaton agent Eaton agent pneumonia eave eaves board eaves molding EBAM ebb-and-flow structure ebb current ebb tide EBCDIC E beam Ebenaceae Ebenales E bend Eberhard effect Ebert ion counter EBIS EBM ebonite ebony ebracteate ebracteolate

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。