一部20册的百科全书

an encyclop(a)edia in 20 volumes

兵器百科全书

энциклопедия оружия

编纂百科全书

compile an encyclopaedia

技术百科全书

техническая энциклопедия

少年儿童知识百科全书

детская познавательная энциклопедия

职业卫生与安全百科全书

Энциклопедия гигиены и охраны труда

你为什么不去查百科全书?

Why don’t you look it up in the encyclopedia?

中国的《永乐大典》是世界上最早最大的百科全书。它成书于1408年，共有22,937卷， 11,095册 37,000万字，由2,000名学者编写。

“The Yongle Canon”, compiled by 2, 000 scholars and completed in 1408, A. D. , was the world’s earliest and biggest encyclopaedia, which contains 22937 volumes bound into 11095 books with a total of 370 million Chinese characters.