科学时代-面向大众传播科学知识、科学方法、科学精神和科学思想的科学普及平台。

科学时代收录了3405121条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

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Petraia	Petraites heptaeolus Ogilby，1885	Petraites johnstoni (Saville-kent，1886)	Petraites nasutus (Günther，1861)	Petraites Ogilby，1885
Petraites roseus (Günther，1861)；crested weed-fish	petralogy (petrology)	petra(pl.petai)	Petrasma pervernicosa	Petrassi, Goffredo
petrean	petrel	Petrella, Enrico	Petren's diet	Petren氏饮食
Petren氏饮食	petrescence	Petre, Thomas	Petrich	Petricola divergens
petricolous	petri-derserta	petri dish	petri dish，Petri dish	petri dish， petri plate
Petridis, Petros	Petri, Egon	petrifaction	Petrifaction; Petrification	petrifaction structure
petrifactology	petrification	petrifide forest	petrified asbestos	petrified auricle
petrified forest	petrified honeycomb (Beckite)	petrified log	petrified log; petrified wood	petrified moss
petrified roses	petrified tree	petrified wood	petrify	petrifying liquid
Petrifying sarcoma	Petrikovka	Petrilite	Petri net	Petrini, Francesco
Petrinja	PETRIOOLIDAE	Petrmyzon	petro-	Petrobia harti
petro-bitumen	petroblastesis	petroblastic texture	pet robot	petrocalcic horizon