System of complete machine is unitedly controlled by photo, electricity and gas.

整机由光、电、气联合控制体系。

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They are natural, social and thinking, which are inherently and unitedly reflected in their a…

人的自然属性、社会属性、思维属性又是内在统一的体现于人的活动中。

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Usually feasibility of cold bend and hot-forming of plate for pressure vessel is tested by experiment in the article, it's described unitedly in theory and experiment.

压力容器板材冷热弯卷的可行性问题，过去一般通过纯实验来测定。

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