Kahi hoʻāʻo Dalian Hōʻike paʻakikī Hoʻāʻo noise a haʻalulu Kaomi Paʻi PT hoʻāʻo Kahi hoʻāʻo ʻo Shenyang Shijiazhuang hōʻike sstation Spectrometer Hōʻike Manaʻo ʻImi ʻia ka pā kani ultrasonic XRF Spectrometer 3D mīkiniʻimi