It is psychological phenomenon and defined as deterioration in execution of habitual process of performance un der pressure.
是一种心理现象，定义为习惯的运动执行过程发生衰变的现象，主要与努力有关。
It also points out that the factors affecting smelting process are un- der the follows, such as, grain size of raw material, burden weighing and mixing etc.
并提出了影响铁合金冶炼过程有原料的粒度，配料称量，混合等重要因素。
When the mumber of the layer has exceeds 5, the Van der Waals interaction become so faint that the enwrapping process can not be continued.
当包膜的厚度超过5层后，则范德华力已经很微弱，即已无法继续包膜，包膜过程随即结束。
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