钻头压力降的英文

• bit pre ure drop
• bit pressure drop

• "钻头"英文翻译    boring crown; bore bit; dril ...
• "压力"英文翻译    pressure; tension
• "降"英文翻译    surrender; capitulate
• "钻头压力" 英文翻译 :    bit load; bit pre ure; bit pressure; bit thrust; bit weight; drill pressure; drill thrust; pressure on the bit
• "钻头压力补偿器的保护杯" 英文翻译 :    compensator protector
• "压力降" 英文翻译 :    difference in pressure; differential pressure; draught loss; drop of pressure; pre ure drop; pressure drop; pressure fall; pressure sink; pressuredrop; pressurefall
• "钻头压降" 英文翻译 :    bit nozzle pressure-drop
• "测量压力降" 英文翻译 :    measured pressure drop
• "额外压力降" 英文翻译 :    extra pressure drop
• "极限压力降" 英文翻译 :    collapse pressure drop
• "井筒压力降" 英文翻译 :    wellbore pressure drop
• "两相压力降" 英文翻译 :    two-phase pressure drop
• "压降,压力降" 英文翻译 :    pressure-drop
• "压力降；压差（损失）" 英文翻译 :    pressure drop
• "压力降低" 英文翻译 :    decreased pressure; depressurizing; drop in pressure; loss of pressure; pressure unloading; reduction of pressure; underpressure
• "压力降落" 英文翻译 :    pfo; pressure breakdown
• "压力降系数" 英文翻译 :    pressure decreasing coefficient
• "粘滞压力降" 英文翻译 :    viscous pressure drop
• "轴向压力降" 英文翻译 :    axial drop
• "总压力降" 英文翻译 :    main pressure drop; total pressure drop
• "压力降，压力损失" 英文翻译 :    loss of pressure
• "压力损失；压力降" 英文翻译 :    pressure loss
• "钻头压降系数" 英文翻译 :    (k
• "触头压力" 英文翻译 :    contact pressure
• "端头压力" 英文翻译 :    end pressure

• Bit pressure drop
  钻头压力降
• Under the function of big pressure and dynamic load , the grains may be moved which may cause the soil body distortion . at present , the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling , auger stem breast wall drilling and down - the - hole hammer follow down drilling
  论文根据jsl ? 30型砾石钻机潜孔锤同心跟管钻具结构,采用程序计算得到了钻杆内各深度处压力分布、钻头压力降、环形空间压力分布及空气流速分布。