塞销 ball retaining plug
封堵球 ball sealer
球封 ball sealing
钢球试验 ball test
滚珠止推轴承 ball thrust bearing
地面控制的球型安全阀 ball type surface controlled safety valve
油管球形安全阀 ball type tubing safety valve
球阀取样器 ball valve sample chamber
球式粘度计 ball viscometer
球形刮刀 ball-and-chain crawler
球及球座型阀 ball-and-dish seat type valve
滚珠-滚柱轴承 ball-and-roller bearing
封堵球 ball sealer
球封 ball sealing
钢球试验 ball test
滚珠止推轴承 ball thrust bearing
地面控制的球型安全阀 ball type surface controlled safety valve
油管球形安全阀 ball type tubing safety valve
球阀取样器 ball valve sample chamber
球式粘度计 ball viscometer
球形刮刀 ball-and-chain crawler
球及球座型阀 ball-and-dish seat type valve
滚珠-滚柱轴承 ball-and-roller bearing
单流阀 ball-and-seat
球窝轴承 ball-and-socket bearing
球窝接头;球形铰链连接 ball-and-socket joint
工业用金刚石 ballas
巴拉赛特 ballaset
压载室 ballast cell
压载水泵 ballast pump
石碴路 ballast road
压载罐 ballast tank
重型浮阀塔盘 ballast tray
压载调整;纵倾调整 ballast trimming
压舱水 ballast water
压载状态 ballasted condition
铺碴机 ballaster
压载打压舱水 ballasting
施加压重;铺完石碴 ballasting up
压载-储存舱 ballaststorage chamber
孔标定装置 ball-bore calibration device 球-
易泥包地层 balling formation
泥包 balling up
阀球被卡住 balling up of valves
泥包卡钻 balling-up sticking
冲击式流量校验器 ballistic prover
弹道学;发射特性 ballistics
波里斯太 ballistite
锁紧球指针 ball-locking finger
投球封堵 ball-off
雾粒电荷计 ballometer
副囊 ballonet
球体烧瓶 balloon flask