The objective function, is the minimum fabrication cost of the optical system.
目标函数是光学系统的最低制造成本。
The utility model has the advantages of simple structure, easy fabrication, and low cost.
其结构简单，易于制造，降低了成本。
The utility model has the advantages of simple device, easy fabrication and low cost.
该装置结构简单、易于制造、成本低廉。
The utility model has the advantages of simple device, easy fabrication and low cost.
该装置结构简单、易于制造、成本低廉。
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