book block

基本解释

As you can see, a line is printed for each book block.
可以看到，每个图书块输出一行。
Finally, using the foreach loop, the script loops around each book block and picks out the author, title, and publisher.
最后用 foreach 循环，在每个图书块间循环，并提取出 author、title 和 publisher。
Wrappering: Attaching a paper or board cover by gluing at the spine of a book block which may be stabbed, adhesive bound or sewn.
包封面：在书芯（用铁丝平订，胶装或线装造成）的脊部加胶，贴上纸或纸板书皮的情况。

If a card belonging to a Berliner has never been used to purchase a plane ticket or buy goods outside Germany, the system may block an attempt to book a Moscow-Tokyo flight leaving in three hours.
ECONOMIST: Computing
Using standard laboratory gene synthesizing equipment, they made almost 55, 000 strands of DNA, each containing a portion of the text and an address block, indicating where it occurred in the flow of the book.
FORBES: What if Big Data is Too Big? A Radical Solution May Be in DNA