Research shows that fatigue life of drill pipe was influenced by the geometric shape in intermediate belt formed during the endupsetting process.
研究表明，在钻杆管端加厚过程中所形成的内加厚过渡带的形状对钻杆的使用寿命有显著影响。
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As soon as you awaken, identify what is upsetting about the dream. Visualize how you would like it to end instead, the next time it occurs, try to wake up just enough to control its course.
Says Delaney: “I’ve seen hundreds of clients put an end to upsetting dreams by figuring out what underlying worry the dream is expressing, then dealing with it in real life.