钱的事情以后再担心，首先要聚焦用户，其他的东西自然水到渠成。
Worry about the money later, when you focus on the user, all else will follow.
聚焦你的脚趾头，慢慢地，并一再告诉他们去睡觉。
Focus on your toes first, slowly and repeatedly telling them to go to sleep.
足够的功率密度、用适当的焦距并确定最好象面、再聚焦方法等是激光深微孔加工的重要因素。
The important factors for laser depth-microdrilling are the sufficient power density, suitable focal length, determination of the best image plane and refocusing etc.
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