A new developed instrument Model CSY-1 for measuring wire feed rate in MIG and MAG welding and for detecting quality in welding process is given.

新研制的、适用在MIG、MAG焊接中，作测定送丝速度和在焊接生产中作质量检测的CSY一1型测量仪。

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Radical theory of Oilfield Injection Water Detecting Instrument (OIWDI) is analysed and its measuring model is established. OIWDI, which is intended for the working site, is developed.

分析了油田注水水质检测的基本原理，建立了油田注水水质检测仪的测算模型，研制出一种可用于现场的油田注水水质检测仪。

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