简介:Anidiomisaphraseorsentence,whichmeanssomethingdifferentfromthemeaningofseparatewords.Idiomscomefromlong-timeuse.Connectedwiththebackgroundofeconomy,geographicalconditions,customs,stateofmind,etc,idiomsreflectthereallife.Differentpeoplehavebothsimilaranddifferentidioms.Idiomshavetheirownfeatures.Themaremanymethodsintranslatingidioms.Literaltranslation,synonymtranslationandfreetranslationarethemainthree.
简介:最初,捷克斯洛伐克装甲部队的战斗车辆是很少的,只有1个坦克营,下辖3个坦克连。30年代初情况发生变化,捷克军队引进了新型战车:OA-30装甲车,33型超轻型坦克和LT-34轻型坦克。1933年该营被扩编为第1坦克团。第1坦克团由坦克营、装甲牵引车连、骑兵营和后勤连以及训练部队组成。坦克营下辖2个超轻型坦克连和1个LT-34坦克连。2个装甲车连组成轻型装甲部队。每个坦克连(开始还有超轻型坦克)由4个排组成,
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简介:引进分次Armendariz环的概念,讨论了分次环R=n∈ZRn及由它导出的非分次环R,R0,及R[x]之间关于Armendariz环性质的关系,并推广了[8]的结论,得到在R=n∈ZRn是Z-型正分次环的前提下,若R是分次Armendariz,分次正规环,则R是P.P.环(Baer环)当且仅当R是分次P.P.环(分次Baer环).
简介:AsoilpotcultureexperimentwithfoursuppliedPlevels(i.e.P30,P50,P100,P200,representingsupplementalP30,50,100,200mg/kg,respectively)wasconductedtoinvestigateuptakeanduseabilitytoPandZninthericegenotypeswithdifferentP-efficiency,ofwhichricegenotypes508,99011,580,99112werelow-Ptolerantand99056,99012werelow-Psensitive.Low-Ptolerantrice580and99011absorbedmorePthantheothers,andricegenotype580hadstrongeruptakeabilityespeciallyatlow-PlevelsuchasP50andP30.508couldabsorbconsiderableP,andhadthelowestPpercentageofshoot,indicatingithadgoodperformanceinP-useefficiency.ThesethreericegenotypeshadlargerbiomassandlessresponsetochangedPlevelthanricegenotype99112,99056and99012.Ricegenotype99112showedLow-Ptolerancemainlybysacrificingbiomasstomaintainhighrelativegrainyield.TheleastamountofPabsorbedby99056showedithadthelowestPuptakeefficiency,andthehighestPpercentageinshootof99012meantithadthelowestPuseefficiency.Sotheytwoshowedlow-Psensitivity.ZncontentsinshootunderP200,P100andP50weresimilar,butP30increasedZncontentinshootsignificantly.TheZncontentsinshootof99112,99056and99012werehigherthanthoseof508,99011and580,especiallyattilleringstageandbootingstage.AsfortotalZncontentinshoot,Low-Ptolerantricegenotype580hadthelargestamountandfollowedby99011and508,low-Ptolerantricegenotype99012hadthesmallestamountatthethreesamplingstageandfollowedby99056.Furthermore,P/Zninshootof99012wasthehighest,andthatof99056wasthesmallestatthesamePlevel.