而次级目标则比较不同雷射技术的效果。
A secondary objective was to compare the effects of different photocoagulation techniques.
过去，我每年会为自己设定一到三个目标，每月有次级目标。
In the past, I'd set a goal or three for the year, and then sub-goals for each month.
和所有的战略计划一样，这些目标可以进一步细化分解为多个次级目标。
As with all strategic plans, each of these goals can be further broken down into multiple objectives, each of which has its own specific requirements.
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