Ho-pi

Hopi hopi hópi English thumb|Map including HO-PI (Defense Mapping Agency DMA, 1975) Etymology From en cmn 鶴壁, en cmn-wadegiles - romanization: Ho⁴-pi⁴.Hebi, Wade-Giles romanization Ho-pi, in Encyclopædia Britannica Proper noun 1 1 en Hebi. en https://www.jstor.org/stable/1794831 1963 The Coal Industry in Mainland China Since 1949 w:The Geographical Journal 129 3 0016-7398 1794831 905927071 333 At Ho-pi (Hopi) in northern Honan two modern shafts were under construction in 1957-8; but the coal from Ho-pi is expected to be of rather poor quality and so will be mixed with rich coal from P'ing-ting-shan (Pingtingshan) in central Honan for coke making. en 1963 Yuan-li Wu Economic Development and the Use of Energy Resources in Communist China https://archive.org/details/economicdevelopm0000wuyu/ w:Frederick A. Praeger 63-15122 1041285856 49–50 https://archive.org/details/economicdevelopm0000wuyu/page/50/ Especially notable among the large mines are . . . ; and the four mines at Ho-pi in Honan Province, which were among the first mines to adopt hydraulic coal mining. en 1974 D. J. Dwyer China Now: an Introductory Survey with Readings https://archive.org/details/chinanowintroduc0000dwye/ w:Longman 0-582-48076-0 73-87225 963067253 5438328M 236 https://archive.org/details/chinanowintroduc0000dwye/page/236/ At Ho-pi (Hopi) in northern Honan two modern shafts were under construction in 1957—58: but the coal from Ho-pi is expected to be of rather poor quality and so will be mixed with rich coal from P’ing-ting-shan (Pingtingshan) in central Honan for coke making. en 1999 w:Joseph Needham; Peter J. Golas Science and Civilisation in China https://books.google.com/books?id=TSiII7s2wLkC 5 w:Cambridge University Press 60416573 299 In time, this evolved into the room and pillar (or pillar and stope) method that came to be used widely, especially in Chinese coal mines. We have good evidence for the use of this technique in the remains of a Sung/Yuan (c. +13th century) coal mine at Ho-pi zh 鶴壁 in Honan (some 25 km southwest of An-yang). Translations Hebi References Anagrams en hiop IHOP Ipoh OHIP