[机]?方头螺栓
...螺母）flanged nut （凸椽螺母）/lock nut（锁紧螺母）等； bolt(螺栓)可分为big-end bolt （大 端螺栓）/coach bolt（方头螺栓）/connecting-rod bolt（连杆螺栓）/double-ended bolt（双头螺栓）/eye bolt （环头螺栓）/rag-bolt（棘螺栓）等；screw(螺钉)又...
?马车螺栓
... 凹舱室 coach 马车螺栓 coach bolt 马车螺栓 coach bolt ...
?止动螺栓
... 螺栓 bolt 止动螺栓 coach bolt 托盘铆钉 pallet rivet ...
方头螺栓
Bolt's coach Glenn Mills is hopeful he can go under 19 seconds in the 200m.
BBC: Bolt eyes world record domination
[机]方头螺栓，马车螺栓
cup square bolt??/??lag bolt
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。