Examination shows that the heart of andrias davidianus have three chamers - two atria and one ventride , the atria on the left of midline , the ventricle on the right of midline , and the atria are divided into two cavities by septum interatriale . there are four valvula semilunaris in conus arteriosus , but no spiral valve in conus arteriosus . the coronary artery is made by arterica carotis externa branches 研究結(jié)果表明,中國大鯢循環(huán)系統(tǒng)解剖學(xué)特點(diǎn)為: 1 .心臟:心房心室為左右排列,兩心房前后排列,共有4對動脈弓,其中第二、三對動脈弓匯合成一條背主動脈;動脈圓錐基部與心室相接處有4個(gè)瓣膜,動脈圓錐內(nèi)沒有螺旋瓣,動脈圓錐與腹側(cè)主動脈干之間有3個(gè)半月瓣;房間隔有穿孔;冠狀動脈由頸外動脈的分支匯合而成。
前后: around; about排列: arrange; rank; place; range; ...前后排列的: tandem前后排列時(shí)間表: tandem schedule后排: back row 坐在后排的一個(gè)座位上 take a seat on a back row; 后排插上戰(zhàn)術(shù) back-setter-move forward play (球類運(yùn)動)按時(shí)間先后排列的事件: events in chronological order ie according to times dates etc前后排座位錯(cuò)開的布景形式: staggered seating前后: 1.(時(shí)間接近) around; about 春節(jié)前后 around the spring festival2.(自始至終) from start to finish; from beginning to end; altogether 這篇小說從動筆到定稿, 前后用了一年時(shí)間。 the novel took a year to write altogether, from start to finish. 他前后來過四五次。 he has been here four or five times altogether.3.(前面和后面) front and back 受到前后圍攻 be attacked both front and back; be caught between two fires; 房子前后都是果樹。 there are fruit trees in front and at the back of the house傳后排: backrow set后排氣: final vacuum后排右: back raght; back right后排中: back centre; cb; centre back后排左: back left; lb排列: 1.(順次序放) arrange; rank; place; range; put in order; arrangement; permutation 排列成行 arrange in a row [line; column]; 按字母順序排列 arrange in alphabetical order; 依大小次序排列 arrange in order of size;汽車沿著道路排列。cars lined the road.2.[數(shù)學(xué)] permutation; 排列表 [訊] permutation table; 排列方向 orientation; 排列符號 permutation symbol; 排列規(guī)則 queueing discipline; 排列凌亂的 misarranged; 排列數(shù) number of permutations; 排列索引 permutation index; 排列天線陣 tier array; 排列項(xiàng) line item; 排列因數(shù) array factor; 排列者 arrayer; 排列整齊 marshalling; 排列組合 [數(shù)學(xué)] permutation and combination后排保護(hù): back up后排打法: back play后排隊(duì)員: back field player; back lihe player; back line players; back row player; back tk后排肥管: rear distributor spout后排觀眾: pittite后排進(jìn)攻: back line offence/back row attack后排扣球: back attack后排水桿: aft water drain mast后排位置: back court position后排席位: back benches后排中座: middle rear seat