... 厚壁取土器 thick wall sampler 活塞取土器 piston sample 对开式取土器 split spoon sampler ...
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One end of a probe telescopic rod is provided with an ultrasonic sensor, a flow velocity determinator, a pressure sensor and a vacuum piston water sample collector.
探头伸缩杆一端安有超声波传感器、流速测定仪、压力传感器和真空活塞水样采集器。
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