Chained library

（重定向自Chained libraries）

A chained library is a library where the books are attached to their bookcase by a chain, which is sufficiently long to allow the books to be taken from their shelves and read, but not removed from the library itself. This would prevent theft of the library's materials. The practice was usual for reference libraries (that is, the vast majority of libraries) from the Middle Ages to approximately the 18th century. However, since the chaining process was also expensive, it was not used on all books. Only the more valuable books in a collection were chained. This included reference books and large books.

单词	Chained libraries
释义	Chained libraries 英语百科 Chained library （重定向自Chained libraries） A chained library is a library where the books are attached to their bookcase by a chain, which is sufficiently long to allow the books to be taken from their shelves and read, but not removed from the library itself. This would prevent theft of the library's materials. The practice was usual for reference libraries (that is, the vast majority of libraries) from the Middle Ages to approximately the 18th century. However, since the chaining process was also expensive, it was not used on all books. Only the more valuable books in a collection were chained. This included reference books and large books.
随便看	n channel field effect transistor n channel junction fet n channel mos n channel tape NCHB NCHD Nchelenge nchems NC high speed milling machine n Chimaerin N. chinensis N. Chip. nchlorimide tung oil NCHM NC horizontal spindle surface grinding machine n chromatic graph N. chryseum var. topengii NCHS NCHSRD N. chuii NC hydraulic guillotine shears NC hydraulic press brake NCI ncib NCIC