介绍了一种电子式双水位报警器的结构及工作原理，并对其有关参数的选定进行了设计计算。

This paper introduces the working principles of an electronic double-water level alarm and the designing calculation of its related parameter selection.

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电池放电达80%，双闪灯闪烁发出“电量耗尽”报警。

Battery discharge up to 80%, two flashing lights flashing issued a "charge depletion" Alarm.

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该系统在计算机控制下，由爬行器带动双探头在焊缝两侧移动，发现缺陷即报警并标识，从而实现探伤作业自动化。

Under the control of computer, the ship crawl drives two probes which are arranged on both sides of the weld and move towards the weld. When a defect is scanned, the detector will alarm and make am...

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