Each lithologic member expresses the strong or weak features of the caldera activity, recording the evolution stage of the caldera.

各岩性段反映的是破火山活动的强弱特征，记录的是破火山演化阶段。

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By this stage you should have, at a minimum, part of your vehicle (some objects), lighting, some animation and control (demonstrate some of each of these features).

通过这一阶段你应该有起码的一部分，您的车辆(约物体)，照明，一些动画和控制(显示出一定的每一个这些功能)。

youdao

By this stage you should have, at a minimum, part of your vehicle (some objects), lighting, some animation and control (demonstrate some of each of these features).

通过这一阶段你应该有起码的一部分，您的车辆(约物体)，照明，一些动画和控制(显示出一定的每一个这些功能)。

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