| 释义 |
球头球头(形)[qiú tóu]1.■bulb
常用词组1.■球头扁钢 bulb plate; plate bulb;2.■球头撑杆 ball head stay;3.■球头锤 ball-pane hammer;4.■球头丁字钢 bulb-rail steel;5.■球头工字钢梁 bulb beam;6.■球头轨 bulb rail;7.■球头角钢 bulb angle steel; angle bulb iron;8.■球头联节 coupling socket;9.■球头螺栓 ball stud;10.■球头锥形螺栓 ball headed conical bolt |