Lots of field applications show that this apparatus can effectively reduce drilling cycle, decrease Labour strength and ensure drilling safety.
大量现场应用表明，该装置能有效地缩短钻井周期，降低工人的劳动强度，保证钻井安全。
Lots of field applications show that this apparatus can effectively reduce drilling cycle, decrease Labour strength and ensure drilling safety.
大量现场应用表明，该装置能有效地缩短钻井周期，降低工人的劳动强度，保证钻井安全。
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