頂事 的英文怎麼說
中文拼音 [dǐngshì]
頂事
英文
（有用; 能解決問題） be useful; serve the purpose; be effective -
This new dictionary is very useful to me.
對我來說這本新詞典很頂事。This new dictionary is very helpful to me.
對我來說這本新詞典很頂事。When david breashears began to think how maybe it might be possible k maybe somehow k someway k i can get that camera to the summit. that started to change everything
當貝大衛開始想，或許這可能，或許用某種方法，我可以把照相機帶到山頂，事情就開始改變了。There were, however, two of his belongings that even trina could not induce him to part with.
不過，還有兩樣東西，他堅決不肯脫手，連屈麗娜哄他都不頂事。The child is too young to help.
孩子太小，不頂事。The probability and unconditional failure intensity of top event was computed in the quantitative analysis of fta based on bdd
在基於bdd的故障樹定量分析研究中，實現了頂事件發生概率和絕對失效強度的求解。It is concluded that the analysis is conducive to setting up an effective risk protection and management for the oil depot
依據故障樹分析的結論提出了降低頂事件概率的防範措施，為油庫的風險管理提供科學依據，並可為其它油庫項目的火災爆炸事故分析提供參考。But beyond hong kong, a simple warrant would be of no avail ; an extradition warrant would be necessary, and that would result in delays and obstacles, of which the rascal would take advantage to elude justice
但是，過了香港，光有一張拘票，就不頂事了，還必須辦理引渡手續。辦引渡手續就免不了延遲拖拉和遇到各種阻礙。到那時，這個流氓十拿九穩又會逃之夭夭。This thesis focuses on techniques of dynamic fault tree in system reliability modeling and its qualitative and quantitative analysis. it studies bdd solution for static sub trees 、 markov chain solution for dynamic sub tree briefly and the modularization of dynamic fault tree ; presents the algorithm for top event occurrence rate of dynamic fault tree based on weibull distribution. then this thesis presents a new approach to solve top event occurrence rate and a new generation algorithm of minimal cut sequence of dynamic fault tree that deviate from markov model completely
本文著眼于動態故障樹在系統可靠性建模及定性定量分析中的技術，研究了基於bdd的靜態子樹分析方法、基於馬爾可夫模型的動態子樹分析方法以及動態故障樹模塊化方法，並提出了基於威布爾分佈的動態故障樹頂事件發生概率計算方法;提出了一種完全脫離馬爾可夫模型的求解動態故障樹頂事件發生概率的方法和一種最小順序割集的生成方法。From top level event fault, every level events " ineffective rate and unreliability limit are calculated and sorted by maximum probability of occurred faults in each level, the sequence of the bottom - event is arranged, and then the most probably happened bottom - event correspond to the specific top - event is found rapidly
從頂事件開始，計算各級故障的失效率和不可靠度，按照各級故障發生的最大概率，排列出底事件序列，迅速找到某一頂事件最可能對應的底事件，實現智能故障分析與診斷。A lot of papers about the report of probabilistic risk assessment of daya bay npp and system manuals has been read by the author and let as the basis. in this paper, based on the reliability analysis methods of failure mode and effect analysis and failure tree analysis, according to the result of event tree analysis of probabilistic risk assessment report of daya bay npp, the top events of the fault trees of reactor protection system and the success criteria were established. by using risk - spectrum procedure, the unavailability and the minimal cut - sets ( mcs ) of the fault trees were obtained
本文在閱讀了大量的大亞灣核電站pra報告和各種系統手冊等資料的基礎上，採用fmea （故障模式和影響分析）和fta （故障樹分析）可靠性分析方法，依據大亞灣核電站pra事件樹分析的結果，建立了以緊急停堆失效和專設安全設施驅動失效為頂事件的故障樹，利用risk - spectrum程序，對所建的故障樹進行定量分析，計算，得到系統故障樹的失效概率和最小割集，從而為大亞灣核電站可視化風險分析軟體提供數據支持。Based on research of theory and methods, this thesis presents design scheme of the dynamic fault tree analysis platform dfta and implement the platform ; practices a dynamic fault tree analysis example of boeing 707 plane engine oil indication system and alarm system on the platform and gets top event occurrence rate 、 minimal cut sequence 、 probability importance sequence 、 structure importance sequence and critical importance sequence and presents system improvement suggestion based on the analysis results
在理論方法研究的基礎上，本文提出了動態故障樹分析平臺dfta的設計方案，並進行了實現;利用該軟體對波音707飛機發動機滑油壓力指示和警告系統進行了動態故障樹實例分析，得到了頂事件發生概率、最小順序割集、概率重要度排序、結構重要度排序、關鍵重要度排序等分析結果，並根據上述分析結果提出了系統設計改進建議。This paper presents the conversion from dynamic logic gate to markov chain, the solution of dynamic subtree top event failure probability and the method of obtaining the failure mode of subsystem using markov model, that is sequence cutsets of the dynamic subtree. the typical approach to importance analysis of component is impractical for large systems in markov model, so this paper also provides a simple and intuitionistic graph solution based on markov chain
論文研究了動態邏輯門向馬爾可夫鏈的轉化方法，利用馬爾可夫鏈法求解動態子樹頂事件概率，以及通過馬爾可夫狀態轉移圖直接找齣子系統的故障模式和薄弱環節，即得到動態子樹的順序割集。Fault tree analysis for collapse of roadways with fractured surrounding rock and high tectonic stress in jinchuan mine no
金川二礦區不良巖層采場巷道片幫冒頂事故樹分析Analysis and prevention of roof falling accident in combined caving working face
綜放工作面冒頂事故分析及防治An analysis of the cause for face roof fall accidents and preventive countermeasures
工作面冒頂事故的原因分析和防範對策Analysis of bolting with wire mesh technology from roof fall of letting gas drift
從排放瓦斯巷道冒頂事故分析錨網支護工藝Preventing of thrust roof fall in mining along dip direction in condition of composite roof
復合頂板仰斜開采推垮型冒頂事故防治Application of luokexiu foam to handle the mass caving cavity
羅克休泡沫處理大冒頂事故技術的實踐Technical analysis and prevention of roadway roof - fall accident under conditions of complex roof
復合頂板條件下巷道冒頂事故技術分析及預防分享友人