The identifying results agree with the test oil conclusion.
识别结果与试油结论相符。
Before the test, the coordinates of the X-Y recorder are demarcated and the shifts of the test oil circuit are done manually. The parameters of the characteristics are also computed manually.
在每次测量前需要手动标定X - Y记录仪的坐标以及切换测试项目间的油路，测试曲线绘制完成后也需要手动计算电液伺服阀的各项性能参数。
AJ type safety joint is a specialized joint consisting of two parts. The specialized joint takes protective effect for drilling stem in drilling, repairing and test oil (gas) engineering, etc.
AJ型安全接头是一种由两件组装起来的专用接头，是钻井、修井、试油(气)等工程中对钻柱起保护作用的一种专用工具。
AJ type safety joint is a specialized joint consisting of two parts. The specialized joint takes protective effect for drilling stem in drilling, repairing and test oil (gas) engineering, etc.
AJ型安全接头是一种由两件组装起来的专用接头，是钻井、修井、试油(气)等工程中对钻柱起保护作用的一种专用工具。
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