硒含量变化与海平面升降曲线表现出正相关，在最大海泛面处达最大值。
The selenium content variation displays a positive correlation with the sea level fluctuation curve, with the selenium content reaching a maximum at the highest Marine flooding surface.
在这种情况下，公司的反应可能不够迅速或周到，学习曲线急剧升降。
In such a case, the company's response may not be sufficiently quick or thoughtful, and the learning curve has been steep.
文中重点探讨了步进电机升降速曲线的设计方案及其实现方法。
It mainly discussed the method how to design and fulfill the curve of the speed control.
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