eastern

摘要： Chinese historians coined the term “Sprin?and Autumn Period” to refer to the first half of the Eastern Zhou Dynasty and the term “Warrin?States Period” for its second half respectively. Great chan?es took place durin?the Sprin?and Autumn Period and productive forces advanced at an unprecedented speed. People’s ability to understand and overcome nature increased rapidly and?reat achievements were made in culture and science.

摘要： On January 26,CIIS President Xu Bu met with Ambassador of Estonia to China Andres Unga,Ambassador of Latvia to China Maija Manika,and Ambassador of Romania to China Basil Vasilica Constantinescu.They exchanged views on the relations between China and Central and Eastern European countries(CEECs)and the current international situation.During the meeting,President Xu Bu elaborated on China's policy toward CEECs.

摘要： Dear guests,I’m Jiang Bo from Shandong University.The Maritime Silk Road serves as a link between the Eastern and Western civilisations as well as a window for ancient Eastern and Western people to observe and evaluate each other.The beginning of the 15 th century witnessed the opening of the route from ancient China to the Indian Ocean through Southeast Asia,which is a very precious historic relic nowadays.

摘要： Japanese encephalitis(JE),one of the major viral encephalitides,is caused by Flavivirus circulating in rural areas of Asia and Western Pacific regions[1]and is a neglected tropical viral disease due to its endemicity[2].The culicine mosquitoes,mainly of Culex tritaeniorhynchus and Culex vishnui group,are the vectors of JE virus(JEV)[1].Being a neurologic infection,JE manifests with a set of serious symptoms leading to death in many cases and/or change in behaviour of the patients leading to permanent disability[3].

摘要： We made it!My family and I have managed to cross the North American continent,from western to eastern Canada,in two weeks!I can9t wait to share the stories.

摘要： Chinese Torreya grandis(Torreya grandis cv.Merrillii)is a unique economic tree species in China.Intensive management related to application of chemical fertilizer and herbicides caused serious soil quality degradation of Chinese Torreya grandis plantations.Totally,120 soil samples were collected from the main disbtributed areas of Chinese Torreya grandis in Southeastern China.In this area,soil pH values varied from 3.68 to 6.78,with a median value of 4.91,implying a trend of acidification.The average concentrations of organic matter,available nitrogen,available phosphorus and available potassium were 27.52 g kg^(-1),135.77 mg kg^(-1),15.12 mg kg^(-1),and 153.43 mg kg^(-1),respectively.The results of spatial analysis revealed that target variables had clear spatial patterns.The soil fertility was relevantly high in most of the study area,with soil nutrient imbalances existing.The stand age had a large effect on soil properties,which were also mainly influenced by human activities.Therefore,it is necessary to change the fertilization method for a sustainable management of Torreya grandis plantation.

摘要： A French expert explores the depth of Chinese culture and history,with a strong wish to promote a real dialogue between Eastern and Western cultures.JEAN-FRANCOIS Vergnaud,director of the Franco-Chinese Institute(IFC)at Renmin University of China in the city of Suzhou in east China,has worn many hats.He has been a construction worker,a legal advisor,a computer specialist,and a diplomat.He worked as a Chinese language teacher and later a researcher in Chinese studies.The 70-year-old’s China story began in 1974 with an unusual teacher.

摘要： 1.Objective The coalbed methane(CBM)exploration in the Jixi Basin began with the gas control in the coal mine(Fig.1).The object is mostly the main minable coal seams shallower than 1000 m.The coalbed methane and unconventional gas in coal-measure deeper than 1000 m are rarely concerned(Bi CQ et al.,2018).The coal measure“three gas”referred to as coalbed methane,coal-measure shale gas,and tight sandstone gas is the main part of the unconventional gas in coal-measure.Since 2015,China Geological Survey(CGS)has carried out a systematic geological survey and evaluation of unconventional gas in coal measure of the Chengzihe Formation of Lower Cretaceous in this area.The favorable areas and target areas have been optimized.This study is to obtain the coal-measure reservoir parameters and gas-bearing parameters of mid-deep layers of the Chengzihe Formation(1000-1500 m),to ascertain the development of gas-bearing layers.It is also to search for new methods and technologies,such as the production layer optimization methods,the reservoir reconstruction process,and the joint production of coal measure“three-gas”of the thin interbedded coal-measure composite reservoir,to obtain high industrial production,and to evaluate the technical recoverability of unconventional gas in coal-measure.

摘要： 1.Introduction The Aouli inlier,located at the Western extremity of the Eastern Moroccan Meseta is one of the most important metallogenic provinces of Morocco.It is known for the striking diversity of its geological formations and structures,as well as its numerous ore deposits,and its various industrial rocks and minerals(Emberger AN,1965a;Margoum DA et al.,2015;Yaagoub DR et al.,2021a,with references therein).For this reason,this inlier has been the subject of numerous studies in the various disciplines of Earth Sciences,since the beginning of the 20th century until today.

摘要： SINCE the 18th National Con­gress of the Communist Party of China(CPC)in 2012,China Eastern Airlines Group has pursued high-quality development and played a leading role in China’s civil aviation.From energy conservation and carbon reduction,to airborne evacua­tion missions and public welfare charity,China Eastern is committed to fulfilling its social responsibilities commitments as a leading enterprise.