An audible tone signals that the temperature has been computed.

声音信号表示体温已计算完毕。

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The sludge blanket is detected by winding the sensor down into the tank, the audible tone will change and the LED illuminates once the sensor has reached the blanket.

探测污泥层时，将传感器环转着降下沉积槽中，一旦传感器接触到了污泥层，可听见的声响会变调，并且LED会立即点亮。

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Involved in these thoughts, she scarcely heard a voice behind her, until it had repeated her name more than once, in a loud and solemn tone, audible to the whole multitude.

她的脑际充满了这种种念头，对于她身后传来的话语竟然充耳不闻一直到后来那严肃的话音越来越高地一再重复她的名字，使得在场的所有的人都听得一清二楚了。

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In addition the machine can be set to sound an audible tone when the vehicle enters the highlighted space.

BBC: Navevo sat-nav offers cyclist alerts to lorry drivers

Dr Cruse and his colleagues first asked six healthy volunteers to imagine either squeezing their right hand or wiggling the toes of both feet when they were presented with an audible tone.

ECONOMIST: Vegetative state