帮忙看下我这篇短文有没有语法错误...作业在发给老师前我还不太放心,主要是语法和措辞方面,通顺不通顺之类的,Withrapiddevelopmentoftransportationandweaponstechnology,morecasualtieswereexperiencedtha

　　帮忙看下我这篇短文有没有语法错误...

　　作业在发给老师前我还不太放心,主要是语法和措辞方面,通顺不通顺之类的,

　　Withrapiddevelopmentoftransportationandweaponstechnology,morecasualtieswereexperiencedthanever.TherewereseveralwartechnologiesbeingcreatedduringWWI,includingdirigibles,fieldguns,fighterplanes,submarines,andpoisongas.

　　Dirigibleswereakindofairshipsfillingwithgas.GermanyuseditforseekingandbombingtaskswhileBritainusedsmallerframelessonestoprotecttheirshipsfromattackingbysubmarines.Also,Germany’s“BigBertha”artillerywasanexampleshowingbiggerfieldgunsplayedanimportantroleinattackingothercountriesinWWI.Often,theshellsbeingfiredwerefilledwithshrapnelandexplosives.Inaddition,fighterplaneswereusedtoattackinsteadoffindingtheenemy.Engineerseveninventedaninterruptersystemforavoidingchoppingofftheplane’sownwoodenpropeller.Germany’sU-boatswerealsomentionablebecauseittravelledfasterthanmostshipsandcrewcoulduseperiscopestoviewsituationsabovewater.Theyusedtorpedoestosinkenemyaswell.WhentheAllieswerediggingtrenches,Britaininventedtanksthatcouldbothattackandshelterwhilecrossingnoman’sland.Lastbutnotleast,poisongaswasfirstbeingusedbyGermanyduringWWI.Later,bothsidesusedphosgenegasandmustardgas.Forprotectingsoldiersfrompoisonousgas,anti-gasrespiratorwasinvented.