S i C t X j v 0 30801 K 1 Z u 1 i B Z i i v Y v n Y 3 6 B Z Y i 9 8 i 3 h i Y 9 3 i Z E E H S i C S i Z t 1 o M i Z t m s S625 3 D S M A c I 1003 188X 2011 07 0233 03 0 C 3 S v 7 1 i Y i T P K D 3 Y i i n v 7 O Y i 9 8 v i i v T v 3 4 y N r i X j B 1 5 1 1 i Z E 1 1 Z E v g i l B a Z 1 7 Z E C i f Z B 1 2 E B b 4 T 4 V b 0 4 1 s o U P r T z P Z E n 9 B y N Z E P S s B K F E F E 5 E F E l 2010 09 20 S E 1 S 30771241 T e X 1986 3 q V 3 E mail yuke406336022 Y T 1955 3 t q p V 3 E mail wsx B 7 B B E T q 2 5 E Z i Z 5 2 V i S K B i Z E 1 3 Z E E Y V b T 7 b B Z E d Z E i Z S i v k Z E i s V G s T P S T Z T V s 1 T s T V s w M T 0 T g T A T T5 w M T V s T T V 5 0 T V s 0 T 0 T 2 o s o V s W M 4 3 s V s Y 4 s s V s T k T L T 8 1 s T M T 3 T 1 L9280 Y S 233 2011 M7 j 7 CL 3 6 CL 3 5 F E 5 CL 2 4 W CBX 216 8 b M T 1 v CX 30 W CBX 216 g b Y S CBX 1600 N XLB 212 l5 l 4 V T V A Z E X t 8 T V s V H q K B P B 4 b V b V 7 P i K y N A i 1 I n 5 s r 9 i 2 C S 7 b k l h S 5 T S j y Z 7 9 4 5 S C i Z i 1 d B t y P S i S V Y i y V h i 3 Y 1 u Z T i Z E l e i V Y Z E V V i l i V 9 T 7 O b v n H W n 6 V 4 i E H W v v 4 r q 8 4 o 4 o o o o K Y T b y N 4 b v V 7 4 0 i 6 P A M b M N r b A b L 5 S u 4 Z L y i 9 W P 4 N H P 4 K 1 v P 4 i j v E j 3 j 5 E Z i Z 5 11 i S K B i Z E F 5 E B Q g v a l l i T v 3 K L Z E S P v s V S S V x S E g S 9 B 5 B i S Y Z Z Z E j 2007 M1 B L z TYD 81 i h j U S k j k r T d i o i K 9 T F T 8 T 3 T 12 i L 3 T v P F T C T 45 H 4 A F v H 3 1 v 2 l 8 T d d d d e d5 s B 8 I n d J 1 r T z w 234 2011 M7 j 7 u P i H y 1 7 a R S 6 Z 3 H q r W 5 i j S j y Z S D I D 1 9 C 8 T i J j 2004 20 2 239 241 2 BargalePC WulfsohnD IrudayajJ etal Redictionofoil expressionbyuniaxialcompressionusingtime varyingoil seedproperties J JournalofAgriculturalEngineeringRe search 2000 77 2 171 181 3 r S C Z t J 2005 13 2 81 83 4 d 0 S Z T J Z Y 2009 7 115 117 5 S i Z C J j v 2005 36 2 131 138 6 4 C Z Z J S f 2008 40 4 68 70 7 E f 4 l 0 Y J 2007 23 4 62 66 8 4 J 6 2006 1 130 132 9 WaliamsDD wauiamsNE CaoY Roadsaltcontamina tionofgroundwaterinamajormetropolitanareaanddevelop mentofabiologicalindextomonitoritsimpact J Water Research 1999 34 1 127 138 10 SaIlzoD HeenarSJ Effectsofroaddeicingsalt NaCl on larvalwoodforgs Ranasy lvatica J Environmental Pollution 2006 140 2 247 256 239 235 2011 M7 j 7 11 f MathCAD 9 J j 2008 2 121 122 12 7 p f S L 1 T 1 9 J 2 j v 2006 21 5 677 680 13 f 7 p 1 T 9 Z E J 2 j Q R o M J C M 2001 2 38 40 15 S 1 f M M S C Z t J j S 2008 36 25 11 137 11 139 11 148 16 i g S DB50 T278 2008 S S i i g S 2008 TechnicalStatusandDevelopmentTrendoftheMini tilerinChina ZhuLiuxian YangLing YangMingjin LiYunwu YangYili ColegeofEngineeringandTechnology SouthwestUniversity Chongqing400715 China Abstract Mini tiler withcharacteristicsofsmalscale lightweight easyhandling etc issuitableforoperationsin uplandandwaterfieldofsmalareainhilyregions andtherearewideapplicationprospectsforthesetilersinChina Inthispaper theapplicationstatusofthetilerswasdiscussed andthedevelopmenthistoryandtechnicalstatus home andabroad wereelaborated Suchproblemsasinsuficientatachedtoolsforoperation weight unitaryfunction and imperfecttheoreticalstudyforthepresentmini tilerwerepresented Futuredevelopment withfeaturesofhumanization design multi purposefunction inteligentcontrol andstandardizedstructure wasexpectedaswel Keywords mini tiler technicalstatus developmenttrend 235 11 s T e d i e L J j 2002 18 9 83 86 12 9 B 8 T i J j 2005 36 5 144 149 13 l c 4 Z Z Z J 2007 39 3 8 14 14 f B 4 J a 2007 36 1 11 15 AbstractID 1003 188X 2011 07 0233 EA ResearchStatusandDevelopmentTrendson SnowRemovalofGreenhouseRoofinChina YuKeqiang WangShuangxi EngineeringColege ShanxiAgriculturalUniversity Taigu030801 China Abstract Snowonthegreenhouseroofhasagreatefectonlighttransparenceandheatloss Itbringsbadefectonplant growingalsoafectgreenhousestructurestrength Forthedisadvantagesofgreenhouseroofsnowandinordertoreducethe impactofsnowonthegreenhouseindustry itisthispaperthatgathersupthreecommonlyusedmethodsonthesnowre movalofthegreenhouseroof Thatismethodofartificialsnow methodofmeltsnowandmethodofmachinerysnow On thebasisofdiscussiononthecurentstatusanddisadvantagesofsnowremovalequipmentforthegreenhouseroof ithas discusseddevelopmenttrendsofthesnowremovalforthegreenhouseroofinthefutureinourcounty Keywords greenhouseroof snowremovalequipment developmenttrends 239 2011 M7 j 7