In the process of logging, the comprehensive logging instrument used in drilling site must has corresponding explosion-proof standard.
录井过程中，钻井现场使用的综合录井仪要具有相关的防爆安全标准。
Explosion proof and protection class for instrument shall be met according to the requirements of Technical Specification, and relevant quality certificate documents shall be provided.
必须满足技术规格书对仪表防爆及防护等级的要求，并提供相应的质量证明文件。
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