Results All the 30 patients' discolored teeth were whiter for 4 ~ 5 color gradation after using BEYOND? Bleaching technique.
结果所有30例患者的着色牙使用该美白技术后，牙齿提高了4 ~ 5个色阶。
The optimization of network planning technique is a high gradation network planning technique application, is an important matter of engineering item management research sphere.
然而在建筑工程施工中，网络计划通常只作为投标报价时的一项形式性的内容，并且存在着不规范运用的问题。
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