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静脉产业是经济系统有机的组成部分。
The vein industry is an organic component of the economic system.
youdao
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离开静脉产业，就无法完成物质和能量的循环。
The recycle of substance and energy can not be accomplished without vein industry.
youdao
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离开静脉产业，就无法完成物质和能量的循环。
The recycle of substance and energy can not be accomplished without vein industry.
youdao