I have been looking for a sissy bar and luggage rack, just like yours.
我一直在寻找一个娘娘腔的酒吧和行李架，就像你的。
2
Commencing with one brief joist rack optimizing design issue in the engineering practice, this paper discussed that optimizing design of two bar joist rack structures about pressure bar stabilization.
从工程实践中的一个简单桁架的优化设计问题入手，讨论了考虑压杆稳定性时二杆桁架的优化设计问题。
3
Rack and pinion: Mechanical device consisting of a Bar of rectangular cross section (the rack), having teeth on one side that mesh with teeth on a small gear (the pinion).