spring thrust bearing

信号强度计... ... "spring thrust bearing " 弹簧支撑式推力轴承(水轮发电机的)" "spur line " 输出线的短分支,[短]支线(铁路)" ...

直角三角形_馆档网 ... "弹簧拉力"," spring tension" "弹簧止推轴承"," spring thrust bearing" "弹簧刀具"," spring tool" ...