求翻译：因此，式（1）中的截距项（产值增长的自发效应）可理解为在科技水平保持不变的情况下，劳动力、固定资产等其它要素的变动所引起的产值增长变化。是什么意思？

Therefore, (1) the intercept (spontaneous effect of output growth) may be understood that changes in output growth, labor, fixed assets and other elements of the changes in the level of science and technology remain the same circumstances.

Therefore, (1) for the intercept (the spontaneous growth of output effects) can be understood as the technology level remains constant, fixed assets, labor, and other elements of the resulting from variations in output growth.

Therefore, type (1) intercept item (output value grows spontaneous effect) may understand for maintains in the invariable situation at the technical level, the labor force, the fixed asset and so on other essential factor change causes output value growth change.

Thus, (1) intercept (output growth and spontaneous effect) can be understood as in the case of technology remains the same, labor, fixed assets arising from changes in other factors such as changes in output growth.

正在翻译，请等待...