ultrasonic liquid level measuring
ultrasonic liquid level measuring
超声波液位测量
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Two methods for measuring the height of liquid level in big steel vessels by ultrasonic are presented and a simple comparison of the two methods is also made.
介绍了利用超声波检测大的钢质容器内的液面高度的两种方法，并对这两种方法进行简单的比较。
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