drew-string neck是什么意思

用法例句

It is the purpose of this paper to indroduce the improvement of the traditional drawing and tensioning ribbon machanism of plastics ribbon stapping machine in the designing DK-1 Computer-controlling paper money stapping machine.

介绍了在设计ＤＫ—１型电脑自动捆钞机过程中对传统的塑料带捆扎机有关抽带张紧机构的改进。