A highly insulated hand-held probe containing the voltage divider is often used and comes as an accessory from some manufacturers.

一种高度绝缘的包括分压器的手持式探头经常被使用而且作为某些设备的附件来配备。

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Ultrasonics. hand - held probe doppler foetal heartbeat detectors. performance requirements and methods of measurement and reporting.

超声波学。手持探头式多普勒胎儿心音检测器。性能要求和测量及报告方法。

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The hand-held unit shall be separated from the probe. In case the probe is damaged, it needs only replacing the probe but no need for replacing or repairing the hand-held unit.

手持机与探头可分离式设计，一旦探头损坏，只需更换探头，而无需对手持机进行更换或维修。

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The hand-held unit shall be separated from the probe. In case the probe is damaged, it needs only replacing the probe but no need for replacing or repairing the hand-held unit.

手持机与探头可分离式设计，一旦探头损坏，只需更换探头，而无需对手持机进行更换或维修。

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