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An energy saving method by condensing steam is presented.
介绍了通过水蒸气的冷凝可以节能的方法。
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He exercised his ingenuity to devise a time-saving method.
他开动脑筋去想一个节省时间的办法。
Based on fuzzy control PID, energy saving method of constant power factor is achieved.
在模糊控制PID方法基础上，实现了恒定功率因数节能控制。
However, researchers from the Massachusetts Institute of Technology (MIT) say they have found a method of recovering oil after a spill using magnets, potentially saving companies like BP money in clean up bills.
CNN: Cleaning up oil spills with magnets and nanotechnology
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