“Paleolithic”的概念、定义、翻译、参考文献-科学参考

单词	Paleolithic
释义	Paleolithic [´pā·lē·ō`lith·ik] ^ANTHROPOLOGY The prehistoric period when people made stone tools exclusively by chipping or flaking; frequently defined by the time range from about 2,500,000 years ago to around the final retreat of the ice sheets about 10,300 years ago.
随便看	spectral response spectral selective photoelectric effect spectral sensitivity spectral series spectral-shift reactor spectral temperature spectral theorems spectral transmission spectral type Spectra Pritchard photometer spectrobolometer spectrofluorometer spectrogram spectrograph spectrography spectroheliocinematograph spectroheliogram spectroheliograph spectrohelioscope spectrometer spectrometry spectrophone spectrophotometer spectrophotometric titration spectrophotometry

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。