1.
Fourth cover: Outside back cover of a periodical.
封四:期刊的封底。
2.
Back cover: The sheet covering the end of a book.
封底:书本的最后一面。
3.
The price of a book is usually inside the front cover or on the back cover.
书价通常印在封面内或封底上。
4.
Indicates back or backing. Use in conjunction with a groove symbol.
指示底焊或封底焊。与沟符号一起使用。
5.
a blank leaf in the front of back of a book.
书籍封底前的一张空白页。
6.
Either of the folded ends of a book jacket that fit inside the front and back covers.
向内折的边书籍护套折进封面或封底的折叠端的任一端
7.
The Utilization of Caission in the Project of Syria Shipyard of Underwater Terra Term
封底套箱在叙利亚船坞下水滑道工程中的应用
8.
I shall write to you again at the end of the month.
我月底给你再写一封信.
9.
semipacked bottom-hole assembly
半封隔井底钻具组合
10.
through sheer mischance the letter remained unread.
经由如此彻底的不幸这封信仍未被读。
11.
There will be no ceiling or floor in giving Bonuses to the employees
对员工的奖金实行上不封顶,下不保底
12.
Oil pan timing case cover seal
油底壳与正时齿轮盖油封
13.
The chemist was thorough in his analysis of the substance.
这位化学家封此状之作了彻底的分析。
14.
Mr Bush's veto does not kill stem-cell research.
布什的否决没有彻底封杀干细胞研究。
15.
They attempted to exterminate feudalism
他们要彻底消灭封建主义。
16.
Feudal ideas must be eradicated.
封建主义的思想必须彻底肃清。
17.
The library is expected to top out by the end of this year
博物管可望年底前结构封顶
18.
practice of imposing “no ceiling or lower limit”
“上不封顶, 下不保底” 的办法