machine bolt detail机器螺栓
MACHINE BOLT FASTENERS机械紧固件螺栓
MB Machine Bolt机器螺栓
paper machine cantilever foundation bolt纸机悬臂基础螺栓
bolt machine制螺栓机
bolt machine operator锚杆机操作员
automatic bolt machine operator自动锚杆机操作员
nut and bolt machine tender螺母和螺栓机看管者
bolt making machine螺栓制造机;制螺栓机;详细翻译
N（名词） a fastening bolt with a machine-cut thread 机螺栓