普通視距 的英文怎麼說
中文拼音 [pǔtōngshìjù]
普通視距
英文
ordinary sight distance- 普 : Ⅰ形容詞（普遍; 全面） general; universal Ⅱ名詞（姓氏） a surname
- 通 : 通量詞（用於動作）
- 視 : Ⅰ動詞1. （看） look at 2. （看待） regard; look upon 3. （考察） inspect; watch Ⅱ名詞（姓氏） a surname
- 距 : Ⅰ名詞1 （距離） distance 2 （雄雞、雉等的腿的後面突出像腳趾的部分） spur （of a cock etc ）Ⅱ動詞...
- 普通 : common; general; ordinary; plain; honest; private; trile; average
- 視距 : apparent distance
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Vegetable industry in shandong also has many problems that can not be neglected : for example in producing and sale in china, we faced many problems such as more productions less sale, fierce competition, difficulty in circulation, less market information, less farmer organization in vegetable industry and etc. in export. it is faced that bad sanitation safety and bad commercial property, limitation about foreign green technical barriers and processing technology lag ; in vegetable science and technology and universal lectures, maladjustment in vegetable science situation and development of vegetable, large gas in vegetable producing technical standards and production standards, lacking of medi - organizations, strengthening the education in agricultural popularization and so on are confronted
山東蔬菜產業也存在許多不容忽視的問題:在國內產銷方面，主要面臨量增賣難、競爭激烈、蔬菜流通難度加大、優質化進程緩慢、市場信息不暢、菜農組織化程度低等;在蔬菜出口方面，主要面臨衛生安全和商品性不佳、國外綠色技術壁壘限制、蔬菜產后處理及加工技術滯后;在蔬菜科技和科普方面，主要面臨蔬菜科技工作現狀與產業發展不相適應、蔬菜生產技術標準和產品標準的制定差距較大、科技中介組織缺乏、農技推廣體系和蔬菜科普培訓有待加強等。In order to simulate the return, a radar coherent video echo model is used to simulate target echo, clutter and noise separately. then the three parts which are in the same range cell are added together to form a matrix to represent return in one radar coherent processing interval ( cpi ). this matrix is called a frame of range doppler data
為了較為全面地對雷達回波進行模擬，採用相干視頻回波模型分別模擬雷達目標回波、雜波和噪聲，通過在距離單元內疊加的方法，將一個雷達相干處理周期內的回波數據用一幀距離多普勒平面數據表示。
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