讨论是一般性的，没有提供测量数据，因为目的是鼓励架构师和设计人员在更大的解决方案空间中考虑不同选择的影响。
The discussion will be generalized, with no measurement data provided because my goal is to encourage architects and designers to look at the impact of the choices on the bigger solution space.
通过研究设计了可用于温室土壤水分的测量系统，介绍了其方案设计、电路设计和传感器的选择等问题。
A system measuring soil moisture in sunlight greenhouse is studied and designed in the paper and the plan design, circuit design and choice of sensor are introduced.
设计光学镜头并进行公差分析，研究并提出光学测量方案，选择塑胶材料。
Design of optical lens and tolerance analysis, Research and optical measurement scheme is put forward and select plastic material.
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