The radio is small, about the size of a book, and self-powered.

这种收音机体积非常小，只有一本书大小。

youdao

He prepared for it obsessively, produced a handout the size of a book, but still appeared tense during his first session.

他做了很多准备工作，笔记就有一大把，但是在第一次讲课时，他还是有点紧张。

youdao

A contact print is in the size of a book, but it can be used to enlarge pictures or to have the picture printed on it directly.

一张大底片有一本书那么大。可以放像，也可以直接印像，那是真正意义上的实现影像。

youdao

Aradigm's AERx device is the size of a paperback book and uses liquid insulin packets.

FORBES: Waiting to Inhale

They made the first mobile phone in 1973, it was the size of a phone book and it was shelved.

FORBES: Microsoft Win8 Tablet Is NOT a Game Changer

These tiny PCs measure 0.7 inches thin, making them the thinnest nettops yet1 at just the size of a small book.

ENGADGET: Lenovo debuts IdeaCentre D400 home server, 'world's thinnest' Q100 and Q110 nettops