บริษัท วาย เอ็น พี เอ็นจิเนียริ่ง จำกัด Hong-sen Yan states that modern day replicas of Zhang's system have didn't reach the volume of precision and sensitivity described in Chinese historical records.[100] Wang Zhenduo offered two different products of the seismoscope based on The traditional descriptions of Zhang's gadget.[101] In his 1936 https://heng36533197.mybuzzblog.com/11098262/the-single-best-strategy-to-use-for-heng365-คาส-โน