电子设备故障率最高的部分总是位于维修最不易到达的区域。
In electronics repair the part with the highest failure rate will always be located in the least accessible area of the equipment.
此外，由于微生物很小，也更易于被送到底土、地下水等不易到达的环境中。
Furthermore, their small size makes it easy for them to penetrate hard-to-reach environments such as subsoils and groundwater.
本文提出开发小型无载人智能视频桥梁检测车，配以视频跟踪和图像检测手段对人员不易到达的桥梁底部进行自动检测。
This thesis put forward Intelligent-video Bridge-detection Vehicle (IVBDV), using video scout and image processing technology detect the bottom of bridge where is hard to reach by manual.
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