例句與造句

1. middle-latitude cyclones originate at the polar front .
   中緯度地區(qū)的氣旋發(fā)源于極鋒。
2. (4 ) there exist close relation between the floods season precipitation in northeast china and the anomalies of subtropical summer monsoon, the anomalies of cold air, sub-tropical anticyclone, polar front jet, north hemisphere general circulation anomalies in winter
   (4)東北汛期降水與西南夏季風(fēng)、北方冷空氣、副熱帶高壓、極鋒急流、前期冬季環(huán)流異常密切相關(guān)。
3. below 600hpa, the front of east asia was mei-yu front; mei-yu equatorial front and polar front from the south to the north; while above 600hpa, there was only mei-yu front . upon these conclusions, we put forward a conception model of east-asia front
   在600hpa以下，東亞地區(qū)的經(jīng)向方向鋒區(qū)從南到北依次表現(xiàn)為梅雨鋒，梅雨赤道縫和極鋒；而在600hpa以上，只是極鋒型的梅雨鋒的單一結(jié)構(gòu)。
4. chen et al noted that there are three kinds of landfall typhoon tracks; subtropical high and polar front, whose evolutions and adjustments may modify typhoon movement, are the main synoptic systems which influence the track of landfall typhoon
   陳聯(lián)壽等根據(jù)(1949-1976)年資料，指出：登陸臺(tái)風(fēng)路徑可分為三類；副熱帶高壓和極鋒是影響熱帶氣旋陸地路徑的主要天氣系統(tǒng)，它們的演變和調(diào)整會(huì)影響熱帶氣旋的移向。
5. It's difficult to find polar fronts in a sentence. 用polar fronts造句挺難的