断丝自停采用同步跟踪式红外光电控制，抗外界光干扰，耗电少但检测距离远。
The broken-end stop motion is controlled by synchronized tracking infrared photoelectric system capable of long-distance monitoring with less power and resisting external light interference.
四个插脚意味着可以有四个传感器，比如两个温度传感器(一个用于外界温度，一个用于面板温度)、一个光传感器和一个风速传感器。
Four pins means you can have four sensors, say two temperature sensors, one for ambient and the other for panel temperature, a light sensor, and a wind speed sensor.
屈光不正是一种非常常见的眼部疾病，使眼睛无法对外界物体清晰地聚焦，而导致视力模糊，严重的时候可以引起视力损害。
It occurs when the eye cannot clearly focus the images from the outside world. The result of refractive errors is blurred vision, which is sometimes so severe that it causes visual impairment.
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