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CN109322662A
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A kind of measurement while drilling pipe nipple
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CN109441427A
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Circuit docking facilities for drilling measuring equipment
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CN109323823A
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Air-tightness detection device for measurement while-drilling instrument
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CN109356571A
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Mounting framework for drilling measuring equipment
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CN109374035A
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A kind of sensor detector with vibration rotation function
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CN109323824A
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LWD instrument air-tightness detection device with self-checking function
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CN109488289A
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A kind of multi-parameter drilling measuring equipment
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CN109611075A
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A kind of real-time clock synchronization system and well logging device
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CN109611076A
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A kind of real-time clock synchronous method of well logging device
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CN109510422A
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A kind of electromagnetic drive motor and rotary steering drilling tool
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CN109660050A
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A kind of motor stator and driving motor
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CN109599966A
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A kind of rotor and driving motor
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CN107741309A
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A kind of separate type device for detecting sealability of LWD
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CN107741306A
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A kind of device for detecting sealability with doubles laminated structure
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CN107741310A
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A kind of integrated sealing system safety testing device of LWD
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CN107741308A
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A kind of sealing Quick pressing test device
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CN107743020A
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A kind of signal amplification circuit
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CN107834996A
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A kind of filter circuit
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CN107741519A
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A kind of balancing circuit
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CN107741307A
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A kind of LWD sealing suppresses test device manually
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