河工大双语双语复习题.docx

河工大双语双语复习题.docxLWhatisthebasicstructureofcerealcaryopses(果实)?谷物果实基本结构Embryo胚芽;Endosperm胚乳;Seedcoats(Testa)种皮;Pericarp果皮胚盘功能WhatisthefunctionofScutellum?? 糊粉的特点Thestarchendospermdies,buttheAleuronecellcontinuetorespire(呼吸),而是糊粉细胞继续呼吸(呼吸)慢速下降了很长时间Whatarethepropertiesoftesta? 外种皮的特点Penneability(渗透性)oftestareducesorregulates(控制;调节)(Pericarp)?水果外皮结构性能一Multilayered(多层白勺):(最深处的)layerofpericarp(innerepidermis皮层)—Outermostlayerofpericarp—Hairs(茸毛)6eWhataretheContributionsbybotanical(植物学的)fractionstograinmass?Starchyendosperm84%;embryo3%;outerpericarp4%;innerpericarp1%;seedcoat1%;nucellus1%;aleurone6%;Whatisthemoststriking(显著的;突出的)morphological(形态学)Characteristicofwheat,maizeandrice? 小麦玉米大米。。。特征Wheat:acrease腹沟Rice:pales壳ofrice(ridandgroove凸和沟槽);nocrease;embryo,notfirmlyattachedtotheendosperm;husk20%.Maize:basalpart,narrow;top,broad;embryo,large;pericarp,thicker,robust〕匕滑';tip-cap,hullintheembryo;nohairs,nocellulartestalayer;aleuronecells,colorationinblueWhatistheclassificationofimpurities杂质? 杂质的分类Vegetable,animal,mineral(矿物质)andotherWhataretheprinciplesofcleaningandseparation? 清洁和分离的原则Surfacecleaning:abrasion摩擦,impact碰撞Separation:size,shape,specific-gravity比重,positionWhatistheprinciple原理ofaspiration风选andde-stoning?风选的原理Aspiration:terminalvelocity:weight/pact^spherical球形(cubical)particles碎木料LowerTV:flake-like片状particlesDe-stoning:specific-gravity,selectedmaterial(afterseparationofcoarserandfinerparticlesbysizeandshape)Whatdosecleaningmean? ?Pleasegiveanexample. 环状系统Thefeedratedecreased/efficiencyofseparationincreasedExample:separator10%cutoffwithallseparableimpurities;90%cleangrainwithoutimpurities;粉尘爆炸Whataretheconditionsofdustexplosions(