Pre Experiments 预试验
In similar experiments, Olivera Petrovich of the University of Oxford asked pre-school children about the origins of natural things such as plants and animals.
牛津大学的Olivera Petrovich也做了一些类似的实验，对一些学前儿童问了自然事物诸如植物和动物的起源问题。
The reduction experiments have been done in reactor of fluidizing pre-reduction, using the orthogonal design means.
采用正交设计法进行了流化床还原试验。
The experiments show that the shape of focusing measure curve is obviously improved after pre-processing, the curve is smoother, local peak is eliminated and curve sensitivity is improved by 78%.
实验表明，经过预处理后明显改善了对焦评价函数曲线的形状：曲线更加平滑，局部峰值得以去除，同时曲线灵敏度提高78%。
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