财政赤字通常被划分为周期性赤字和结构性赤字，这样的分类方法是以不规则财政收支为零作为前提。
Budget deficit is usually divided into cyclical deficit and structural deficit, but this classification is assumed that the irregular component in budget is zero.
单索循环轻型运材索道的钢索在每一工艺循环中，要承受静力和规则运动与不规则运动动态力的周期性作用。
The cable in the one-way cyclical light running cable-way Sustains the cyclical actions of the static force, the dynamic forces of law and non-law motions in every technological cycle.
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