Meanwhile, the experiment result shows that the laser holography system is a powerful tool for diagnosing dynamic particle field, with high resolution and large depth of field.
试验表明脉冲激光全息系统具有很好的诊断动态颗粒场的能力，是一种适合于深入研究颗粒运动细节的有效手段。
The deep gas wells of Qingshen gas field in Daqing are characterized by the great well depth, high bottom temperature, high bottom pressure and gas production with water.
大庆油田庆深气田的深层天然气井具有井深、井底温度高、井底压力大、气水同产等特点，前人的井底静压折算公式不能达到生产所需的精度。
Compared it with conventional billet, billet cast with high frequency electromagnetic field, on which depth of surface oscillation mark was decreased remarkably, had a smooth surface.
施加高频电磁场的铸坯与传统连铸坯相比，表面振动痕深度明显减小，且表面光滑。
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