工业以太网进入工业控制领域是工业自动化的发展趋势，其中主要障碍是以太网的非实时通信。
Entering process control area of Ethernet is the developing trend of process automation, while the major obstacle is that Ethernet is not real time communication.
光学三维形貌测量技术具有非接触性、高精度、高速性和自动化程度高等特点，在形貌测量领域得到了广泛的应用。
Optical 3-d shape measurement technology has been widely used in shape measurement because of its characteristics of non-contact, high accuracy, high speed and high automation.
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