polished rod load 光杆负荷 ; 悬点载荷
polished rod capacity 光杆负荷能力
polished rod liner 光杆衬筒
maximum polished rod load 悬点最大载荷
polished rod horsepower [油气] 光杆功率
peak polished rod load 光杆最大悬重
stroke of polished rod [油气] 光杆冲程
position of polished rod [油气] 光杆位置
应用推荐