non-blocking crossbar

例句：

1. 1. The non-blocking crossbar is essential for the operation of theelevator.
   电梯操作中不可或缺的非阻塞交叉杆。
2. 2. The engineers were working on anew design for the non-blockingcrossbar.
   工程师们正在为新型非阻塞交叉杆设计新方案。
3. 3. The constructioncompany was using a non-blockingcrossbar to reinforce the foundation.
   建筑公司使用非阻塞交叉杆加固地基。