First of all, China's industrial structure also has the very big promotion space.
首先，中国产业结构还存在很大的升级空间。
The lifting mechanism has small occupied space, simple structure, reasonable stress and low cost.
该提升机构占用空间小、结构简单、受力合理、制造成本比较低。
The lifting mechanism has small occupied space, simple structure, reasonable stress and low cost.
该提升机构占用空间小、结构简单、受力合理、制造成本比较低。
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