But allowing autonomous commercial drones to deliver customers' parcels in cities would cross a perceptionthreshold.
但允许自动商用无人机在城市递送客户包裹将跨越一个认知门槛。
2
Objective To develope a new instrument with a pressure sensitive strain gauge for measuring the pain perceptionthreshold of oral mucosa.
目的研制电阻应变式口腔黏膜压力测痛仪，并对正常年轻人的牙龈黏膜疼痛阈进行测试。
3
Linear correlation analysis showed that the gastric perceptionthreshold decreased in concordance with the increase of degranulation of 5-ht-positive cells.