简介：年鉴是一年一卷的连续出版物。连续出版保证了年鉴资料的系统性和可比性，但同时也带来了“面孔依旧”的问题。解决这个问题的办法之一，是撰稿人和编辑不妨换个角度去写稿、编辑，条目或许就能“面目一新”。

简介：Ididn'trealizethebeautyofTibetthefirsttimeIwentthere30yearsago.But,whilevisitingTibetinrecentyears,Iwasmovedtotearsasthemarvelousplateausceneryunfoldedbeforemyeyes.

简介：Ingeneral,theearlieststatesandcivilizationsofWesternAsiaandNorthAfricarespectivelyfirstcameintoexistenceattheendofthefourthmillenniumB.C.1Despitethefactthatthesetwoareasdevelopedindifferentdirectionsduringaperiodofabout3000years,therewasthensometypeofcontactbetweenAncientWestern

简介：Thisnew,recentlydevelopedextractingtechniqne,SupercriticalFluidExtraction(SFE),featuresmanyadvantagesinnaturalproductextraction,suchasasatisfactoryrateofextraction,ahighisolationeffect,and,whenoperatedentirelyfreeofresidualsolvents,lowcost.