differential preamplifier,差动前置放大器 differential pressure,差压 differential pressure devices,差压装置 differential pressure flow transducer,差压流量传感器 ..
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两相流流过节流装置时产生的差压测量噪音是由于相浓度在空间的随机分布所引起的。
The spatial stochastic distribution of phase concentration would cause a differential pressure noise when two phase flow is crossing a throttling set.
探讨了利用差压式BOD测定装置测定工业废水中BOD时影响其准确度的几个因素，并提出了相应的改进方法。
Several factors effecting on BOD in the industrial waste water were studied by using the differential-pressure metering device of BOD, and the corresponding improving methods were put forward.
室内利用模拟试验装置进行了环空压差和层间压差与固井质量的关系的试验研究。
The experimental study on the relationship between annulus pressure differential, interlayer differential and cementing quality is carried out on the lab simulation test unit.
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