Development Progress in telephone exchange technology has experienced four major phases of manual exchange, electromechanical exchange, electronic exchange and program-controlled digital exchange....
This shows that the relationship between the sensitivity of the Hall effect is proportional to the magnetic induction intensity of the external magnetic field. The Hall element belongs to this activ...
Introduction One of the members of the British royal family John's second marriage married Guolam's Isabel, Henry, Henry III, First Generation Cornwall, The current Cornwall is the eldest son of t...
Historical Background AD 222, Mi Sahat kicked another family of 14-year-old Alexander Sevilu for the emperor. Alexander Sevarut, the relationship between the emperor and the residential garden was...
Geographic location Preston is located on the bank of the Rivers, England, is a city in northwest England and an administrative center in Lanka Summit. Friendly City Almerlow (Netherlands) L...
Main leaders Director Yu Qingchuang Main responsibilities (1) Implement national, provincial business management and port work Policies and laws and regulations; study the development trend of...
History 19th century, people have developed fluorescent lamps and phosphors during the study of discharge lighting. At that time, the fluorescent lamp was used in zinc silicate, low luminous effic...
form Yalu River estuary archipelago in modern times is gradually formed as the Yalu River Sediment. From the Qing dynasty, eleven years (1885), "Qing Niansan province and the whole map _ North Sta...
Synonym Pedro Badogrio General Due to Pasterrio Character Life One Battle Hero Badogrio is born in Italy Asti province in the Piemondo area of the Piemondo. After graduating from the Turki Aca...
Introduction The full length of the Xi'an Expressway is 141.6km (including the Terracotta Warriors), the west of Xi'an City, the Ten Lichouses, the way Xi'an, Linyi, Weinan, Huaxian, Huayin, 4 cou...
Meng Xianhe Introduction Meng Xiancheng (1894 ~ 1967), famous Chinese modern educator. September 21, 1899, people in Wujin County, Jiangsu Province, when the "Changzhou Faculty" is now the current...
synonym Spiro Theodore Agnew generally refers to Spiro Agnew Biography Spiro Theodore Agnew (Spiro Theodore Agnew, 1918 on 11 Feb. 9 - September 17, 1996), American politician, former Maryland gov...
Planning and construction Sichuan Provincial Development and Reform Commission officially approved, agree to build Dujiangyan City to four girls in the mountainous rail transit poverty alleviation...
Research direction After the Artificial Intelligence School of Southeast University and Research, the research direction will cover the basic theory, support system and innovative application of t...
importance debt structure refers to a variety of corporate debt in the debt ratio of the number of relations, especially the proportion of short-term debt funds because of three reasons. short-te...