The calculated distance (air line) between Beihuaidian and Yangliuqing is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Yangliuqing is certainly longer, as only the direct route (as the crow flies) between Beihuaidian and Yangliuqing has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles