科技论文中几种常见句式Inordertoextractmagnesium（镁）frommagnesite（菱镁矿）intosolution,magnesiteraworeshouldbecrushedinto-2mmgrainsize,andthencalcined（锻烧）intolight-burnedmagnesium.Globally,thecountryisthelargestproducerofsheetmica（云母片）,thethirdlargestproducerofcoal,thefourthlargestproducerofironore,thefifthlargestproducerofbauxite（铝土矿）andoneofthelargestproducersofmineralsandsintheworld.Inaddition,processwatersuppliedfromsitewillbetemporallyvariable（可替代change）(Vinketal,2009).Asaconsequence,anylossofNaintheexperimentscanonlybeattributedtoanuptakeprocessinvolvingcoalorclaysthatisunlikelytobeionexchange.句首状语提前Initialresistancetore-usingwaterinCHPP,particularlyinflotation,wasovercomeasitwasdemonstratedthatsaltywaterprovidedflotationbenefitsandreducedreagentuse(Oforietal2005).CHPP：CoalHandlingandPreparationPlantByusingNaClsolutionsfortheexperiments,changesinEC,whichiseasilymeasuredonsite,canbedirectlytranslatedintoachangeNa+concentrationwithouttheneedforexpensiveandtimeconsumingICPanalysesofthesolutions.EC：electricalconductivityICP-OES：电感耦合等离子体光度发射光谱Uponbombardment（撞击）byanelectronbeamintheSEM,amineralphasewillbackscatterelectronsatanintensitydefinedbyitsaverageatomicnumber,aswellasreleaseX-rayscharacteristicofelementsthatarepresent.SEM:scanningelectronmicroscope（扫描式电子显微镜）插入语的成分很多，有形容词（短语），副词（短语），介词短语，不定式短语等等。一般对一句话作一些附加的说明。通常与句中其它部分没有语法上的联系，将它删掉之后，句子结构仍然完整。在论文中经常出现，让长句子显得更加灵活。Theobjectivewastodevelopasimpletestthatcouldbeusedonsitetoquantifyhowmuchsalt(orindividualcations)wouldbetransferredto/fromcoalintheprocessofcoalpreparation,withafocusonflotation.Conversely,sincequartzandfeldspar（长石）sharesimilarbulkmodulivalues,fracturepathswouldpropagateindiscriminately（任意的）throughthesephasestoproducelowandmiddle-gradecompositesuponparticlesizereduction,asobservedintheMLAdata.MLA：mineralliberationanalysis句尾安插一个短语给长句增加一些“亲和力”。Magnesitemainlyexistsinoreinagranularoranirregularformorastheiraggregation（聚集体，集合体）.Theabilitytosimultaneouslymeetwaterquantity,waterqualityandproductqualityobje