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原文是
Ultrasonic Ranging Project
(1) The user can mask out foreground objects
(2) The output can be swapped from metric to imperial and vice versa
(3)Any non-level measurements can be compensated for and the level that the tool is being held at is also outputted
(4)up to 4 different measurements can be stored on the device for later retrieval
(2)(3)(4)我都完成了，就差这个（1）
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有了这些物件库存更简洁方便！
汽车元件对其它工业又多重要？
你可知道伺服马达今年150岁啦！
LED灯丝灯如何选择驱动电源？
发表于 2015-10-27 04:04 PM