經濟航速試航 的英文怎麼說
中文拼音 [jīngjìhángsùshìháng]
經濟航速試航
英文
economy trial- 經 : 經動詞[紡織] （把紡好的紗或線梳整成經紗或經線） warp
- 濟 : 濟名詞1. （古水名） the ji river2. （姓氏） a surname
- 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
- 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
- 試 : 名詞（古代占卜用的器具） astrolabe
- 經濟 : 1 [經] （社會物質生產和再生產的活動） economy 2 （對國民經濟有利或有害的） economic; of industria...
- 航速 : speed of a ship or plane; navigational speed
- 試航 : 1 （試驗性的航行） trial trip; trial voyage [flight]; shake down cruise [flight]: 船舶試航 trial ...
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First of all, i summarize the forecast model category and estimate each model in detail, then, i adopt different model to forecast demand, supply, bdi of bulk shipping market. as to demand forecast, i mainly focus on the imitating precision of primitive data, adopt grey forecast model, self - suited filter model separately, and then compose these models as a better one. as to supply forecast, i use econometrics model to describe the complicated relationship of demand, supply, bdi, gnp etc. as to bdi, i try to draw into market integrated factor, describe the relationship of bdi, supply, capacity, speed, rate of oil, navigating capital etc. then finally, i make afterwards evaluation of these models and then analyze future bulk shipping market in detail
對于需求預測，著重考慮對原始數據的擬合精度，經過模型比較優選論證，分別採用了灰色一階模型，改進的灰色二階、自適應過濾預測的加權組合模型，得到了相當高的擬合精度；對于供給預測，運用計量經濟模型對供給、需求、運價、 gnp 、進出口貿易額等多變量之間復雜的相互關系進行動態模擬，定量的反映出各變量之間的因果關系；對于運價預測，嘗試引入市場綜合因數概念，化繁為簡，通過描述運價與運力供給、載重噸、油耗、航速、燃油價格、航行成本等等諸多因素的關系來進行預測。
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