球环试验 ball and ring test
球形止回阀 ball and seat valve
肘节扩眼器 ball and socket reamer
滚珠轴承 ball bearing
滚珠轴承内筒不转的岩心筒 ball bearing core barrel
玻球式触底指示器 ball breaker
弹子夹 ball cage
球形单向阀 ball check valve
循环钢球式 ball circuit type
球瓣单向阀 ball clack valve
球粘土 ball clay
球状煤 ball coal
球形止回阀 ball and seat valve
肘节扩眼器 ball and socket reamer
滚珠轴承 ball bearing
滚珠轴承内筒不转的岩心筒 ball bearing core barrel
玻球式触底指示器 ball breaker
弹子夹 ball cage
球形单向阀 ball check valve
循环钢球式 ball circuit type
球瓣单向阀 ball clack valve
球粘土 ball clay
球状煤 ball coal
球旋塞;浮动旋塞 ball cock
滚珠环止推轴承 ball collar thrust bearing
球形冷凝器 ball condenser
球形浮箍 ball float collar
浮球液面调节器 ball float level controller
球形浮鞋 ball float shoe
球磨机 ball grinder
钢球硬度 ball hardness
球形加热器 ball heater
投球器 ball injector
球节 ball joint
球形接头锁紧 ball joint clamping
球节式装置 ball joint drive
球形头 ball joint head
钢球压印试验法 ball method of testing
球磨机 ball mill
球磨粉碎机 ball mill pulverizer
球磨精制机 ball mill refiner
疏通 ball out
球充填物 ball packing
圆头手锤 ball peen hammer
球棒 ball play
弹子孔塞销 ball plug
球形火药 ball powder
球型校验器 ball prover
滚珠座圈 ball race
球回跳试验 ball rebound test
球形安全阀 ball relief valve
塞销 ball retaining plug
球形安全阀 ball safety valve