Both landscape and portrait modes can be used to play CARDS with this app which is undoubtedly convenient.

使用这款应用程序玩风景和肖像模式(landscape and portrait modes)显然都非常方便。

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Palm and finger are usually preferred to be used as measured sites in optical probe-based measurement because they both are convenient and easy to be measured at any time.

应用光学测头的测量方式中，由于方便测量和易于随时测量，手掌和手指经常被选作测量部位。

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But it can not be fitted directly by using some general statistical software, due to its speciality. For this problem, this paper propose two methods which are both feasible and convenient.

然而，由于此类模型的特殊性，我们不能利用一些通常的统计软件对它进行模型拟合或参数估计。

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