optimization and upgrading的用法和樣例：
例句
- The government did hard work at accelerating the optimization and upgrading of the industrial structure.
政府在加快產(chǎn)業(yè)結構優(yōu)化升級方面不辭辛苦。 - Optimization of industry structure refers to the process in which the industry structure of an area evolves in the direction of rationalization.
摘要產(chǎn)業(yè)結構優(yōu)化升級是指特定區域的產(chǎn)業(yè)結構向合理化和高度化方向不斷發(fā)展演進(jìn)的過(guò)程。
