A slang term for an internal drift diameter gauge typically used to check casing or tubing joints before they are picked up and run into the wellbore.
在套管单根或油管单根被提起和下入井筒以前对其进行检查所用的内通径规的习用语。
Through the experiment with the circuits thermal drift, of TYZ-3 intelligent soil nutrition gauge, J-type field effect transistor(JFET) was found as the major cause of circuits thermal drift.
本文简要综述了国内外的电路温度补偿方法，对TYZ-3智能型土壤养分测试仪的温度漂移进行了试验研究。
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