ffp 中文意思是什麼

ffp 解釋
浮沫選礦法
  1. Ffp firm fixed price contract

    嚴格固定價格合同
  2. Frequent flyer program of cswa is a mis system based on qualiflier ffp of swiss air

    「西南航空公司常旅客系統」是在引進瑞士航空常旅客系統的基礎上進行二次開發的應用系統。
  3. Fresh frozen plasma, ffp

    新鮮冷凍血漿
  4. Wide focus area spot focus point switchable, af point movable to any desired place within the area ( ffp - - flex focus point control with spot focus point mode )

    可切換廣闊對焦區重點對焦點，可將自動對焦點隨意移動到拍攝影像的任何一個位置（ ffp -彈性對焦點操控可與重點對焦點模式配合使用）
  5. Contrast study of some ty pical demodulation methods is made in this paper and method of fiber fabry - perot tunable filter ( ffp - tf ) is confirmed

    針對以上問題，採用了一種基於dsp和cpld的信號處理卡，實現了數據的實時高速處理和傳輸。
  6. Secondly, it does deliberate research the reasons for the success of american air market. and it provides the basic driving forces behind the development - the technology of management, such as crs, ffp, code sharing and equity alliances

    第二層面主要研究當今美國航空市場的成因及成功經驗，探討管理技術創新一計算機定座系統（ crs ） 、常旅客計劃（ ffp ） 、代碼共享、國際聯盟等對航空公司發展的巨大作用。
  7. The main contributions of this paper are as follows : we present an efficient algorithm for mining fuzzy frequent itemsets, called fmf. we use ffp tree structure to store frequent item sets imformation, and store ids of transactions related with fuzzy item in tree nodes. in fmf, we can count a fuzzy itemsets support through finding all trasactions including them. we needn ’ t to scan database all. to generate itemset { a } + x ( i. e

    本文的主要工作如下: （ 1 ）針對模糊頻繁集的挖掘問題，提出了一種有效的fmf演算法，在該演算法中採用ffp -樹結構，將與模糊項目相關的事務的序號保存到樹結點中。計算一個模糊項集的支持度，可以通過直接找到所有包含該項集的全部事務進行計算，而不必掃描整個數據庫。
  8. Super set of iemset x ) according to constrained subtree of itemset x, if item “ a ” isn ’ t a fuzzy item, we don ’ t scan database in addition. it can be generated by ffp tree. we propose two order methods for constructing ffp tree. one is that sorting database attributes holding frequent item in ascending order of their nodes number in ffp tree. another is that sorting frequent item of not fuzzy attributes in descending order of their support firstly, then sorting database fuzzy attributes with frequent item in ascending order of their nodes number in ffp tree. our experimental results show that although fmf needs more space costly than the algorithms based on apriori, its time costly is obviously lower than the latter

    針對ffp -樹的生成，提出了兩種排序方法:按屬性順序將每個屬性下的頻繁項目依次插入到頭表中，屬性按照其在ffp -樹中可能的不同結點的個數從少到多進行排序;先對非模糊屬性下的頻繁項目按支持度從大到小進行排序，再對模糊屬性按其在ffp -樹中包含的不同結點的個數，從少到多進行排序，然後依次將各屬性下的頻繁項目插入到頭表中。
  9. The shortcomings of the two methods are analyzed. and then a fast field program ( ffp ) is developed and used to calculate and analyze the underwater acoustic field with the source in the air. some important results have been obtained

    接著分析了以上兩種方法的缺點，並重點提出了用基於傳播矩陣的ffp方法，對空氣中聲源在水下產生的聲場進行了計算和分析，得到了許多有意義的結果。
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