由于在钻井过程中，钻孔周围的原始热动力条件常受到扰动。
The original thermodynamic conditions around a well are usually disturbed, due to the drilling process.
脉冲热像检测中直接获取的原始热像往往信噪比较低、对比度较差。
Raw thermal images acquired by pulsed thermography(PT) usually have low signal noise ratio(SNR) and temperature contrast.
酚树脂和塑料是原始的热硬化性合成材料。
The phenol resins and plastics were the original synthetic thermosetting materials.
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