point for shaft position 近井点 ; [测] 井口位置点
disengaging gear for shaft 轮轴分离装置
alloy for shaft tip 轴尖用合金
Circlips for shaft 轴用弹性挡圈
construction survey for shaft sinking 凿井施工测量 ; 立井施工测量
rotary drill for shaft sinking 凿竖井用回式钻机
Circlips for shaft-type 轴用弹性挡圈 ; A型
construction survey for shaft drilling [测] 钻井法施工测量
pendulous-bob for shaft plumbing [测] 摆动锤投影
circlip for shaft 外卡圈 ; 轴用弹性挡圈
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